640984320

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1138

約数の個数: 288

約数和(自身を含む): 2410611840

約数和(自身を除く): 1769627520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 128, 135, 136, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 256, 270, 272, 288, 306, 320, 340, 360, 384, 408, 432, 459, 480, 510, 540, 544, 576, 612, 640, 680, 720, 765, 768, 816, 864, 918, 960, 1020, 1080, 1088, 1091, 1152, 1224, 1280, 1360, 1440, 1530, 1632, 1728, 1836, 1920, 2040, 2160, 2176, 2182, 2295, 2304, 2448, 2720, 2880, 3060, 3264, 3273, 3456, 3672, 3840, 4080, 4320, 4352, 4364, 4590, 4896, 5440, 5455, 5760, 6120, 6528, 6546, 6912, 7344, 8160, 8640, 8728, 9180, 9792, 9819, 10880, 10910, 11520, 12240, 13056, 13092, 14688, 16320, 16365, 17280, 17456, 18360, 18547, 19584, 19638, 21760, 21820, 24480, 26184, 29376, 29457, 32640, 32730, 34560, 34912, 36720, 37094, 39168, 39276, 43640, 48960, 49095, 52368, 55641, 58752, 58914, 65280, 65460, 69824, 73440, 74188, 78552, 87280, 92735, 97920, 98190, 104736, 111282, 117504, 117828, 130920, 139648, 146880, 147285, 148376, 157104, 166923, 174560, 185470, 195840, 196380, 209472, 222564, 235656, 261840, 278205, 279296, 293760, 294570, 296752, 314208, 333846, 349120, 370940, 392760, 418944, 445128, 471312, 500769, 523680, 556410, 587520, 589140, 593504, 628416, 667692, 698240, 741880, 785520, 834615, 837888, 890256, 942624, 1001538, 1047360, 1112820, 1178280, 1187008, 1256832, 1335384, 1396480, 1483760, 1571040, 1669230, 1780512, 1885248, 2003076, 2094720, 2225640, 2356560, 2374016, 2503845, 2513664, 2670768, 2967520, 3142080, 3338460, 3561024, 3770496, 4006152, 4189440, 4451280, 4713120, 4748032, 5007690, 5341536, 5935040, 6284160, 6676920, 7122048, 7540992, 8012304, 8902560, 9426240, 10015380, 10683072, 11870080, 12568320, 13353840, 14244096, 16024608, 17805120, 18852480, 20030760, 21366144, 23740160, 26707680, 32049216, 35610240, 37704960, 40061520, 42732288, 53415360, 64098432, 71220480, 80123040, 106830720, 128196864, 160246080, 213661440, 320492160, 640984320]

約数ペア:

[(1, 640984320), (2, 320492160), (3, 213661440), (4, 160246080), (5, 128196864), (6, 106830720), (8, 80123040), (9, 71220480), (10, 64098432), (12, 53415360), (15, 42732288), (16, 40061520), (17, 37704960), (18, 35610240), (20, 32049216), (24, 26707680), (27, 23740160), (30, 21366144), (32, 20030760), (34, 18852480), (36, 17805120), (40, 16024608), (45, 14244096), (48, 13353840), (51, 12568320), (54, 11870080), (60, 10683072), (64, 10015380), (68, 9426240), (72, 8902560), (80, 8012304), (85, 7540992), (90, 7122048), (96, 6676920), (102, 6284160), (108, 5935040), (120, 5341536), (128, 5007690), (135, 4748032), (136, 4713120), (144, 4451280), (153, 4189440), (160, 4006152), (170, 3770496), (180, 3561024), (192, 3338460), (204, 3142080), (216, 2967520), (240, 2670768), (255, 2513664), (256, 2503845), (270, 2374016), (272, 2356560), (288, 2225640), (306, 2094720), (320, 2003076), (340, 1885248), (360, 1780512), (384, 1669230), (408, 1571040), (432, 1483760), (459, 1396480), (480, 1335384), (510, 1256832), (540, 1187008), (544, 1178280), (576, 1112820), (612, 1047360), (640, 1001538), (680, 942624), (720, 890256), (765, 837888), (768, 834615), (816, 785520), (864, 741880), (918, 698240), (960, 667692), (1020, 628416), (1080, 593504), (1088, 589140), (1091, 587520), (1152, 556410), (1224, 523680), (1280, 500769), (1360, 471312), (1440, 445128), (1530, 418944), (1632, 392760), (1728, 370940), (1836, 349120), (1920, 333846), (2040, 314208), (2160, 296752), (2176, 294570), (2182, 293760), (2295, 279296), (2304, 278205), (2448, 261840), (2720, 235656), (2880, 222564), (3060, 209472), (3264, 196380), (3273, 195840), (3456, 185470), (3672, 174560), (3840, 166923), (4080, 157104), (4320, 148376), (4352, 147285), (4364, 146880), (4590, 139648), (4896, 130920), (5440, 117828), (5455, 117504), (5760, 111282), (6120, 104736), (6528, 98190), (6546, 97920), (6912, 92735), (7344, 87280), (8160, 78552), (8640, 74188), (8728, 73440), (9180, 69824), (9792, 65460), (9819, 65280), (10880, 58914), (10910, 58752), (11520, 55641), (12240, 52368), (13056, 49095), (13092, 48960), (14688, 43640), (16320, 39276), (16365, 39168), (17280, 37094), (17456, 36720), (18360, 34912), (18547, 34560), (19584, 32730), (19638, 32640), (21760, 29457), (21820, 29376), (24480, 26184)]