639502080

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:711

約数の個数: 288

約数和(自身を含む): 2400996864

約数和(自身を除く): 1761494784

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 37, 40, 42, 48, 56, 60, 64, 70, 74, 80, 84, 96, 105, 111, 112, 120, 128, 140, 148, 160, 168, 185, 192, 210, 222, 224, 240, 256, 259, 280, 296, 320, 336, 370, 384, 420, 444, 448, 480, 518, 555, 560, 592, 640, 643, 672, 740, 768, 777, 840, 888, 896, 960, 1036, 1110, 1120, 1184, 1280, 1286, 1295, 1344, 1480, 1554, 1680, 1776, 1792, 1920, 1929, 2072, 2220, 2240, 2368, 2572, 2590, 2688, 2960, 3108, 3215, 3360, 3552, 3840, 3858, 3885, 4144, 4440, 4480, 4501, 4736, 5144, 5180, 5376, 5920, 6216, 6430, 6720, 7104, 7716, 7770, 8288, 8880, 8960, 9002, 9472, 9645, 10288, 10360, 11840, 12432, 12860, 13440, 13503, 14208, 15432, 15540, 16576, 17760, 18004, 19290, 20576, 20720, 22505, 23680, 23791, 24864, 25720, 26880, 27006, 28416, 30864, 31080, 33152, 35520, 36008, 38580, 41152, 41440, 45010, 47360, 47582, 49728, 51440, 54012, 61728, 62160, 66304, 67515, 71040, 71373, 72016, 77160, 82304, 82880, 90020, 95164, 99456, 102880, 108024, 118955, 123456, 124320, 135030, 142080, 142746, 144032, 154320, 164608, 165760, 166537, 180040, 190328, 198912, 205760, 216048, 237910, 246912, 248640, 270060, 285492, 288064, 308640, 331520, 333074, 356865, 360080, 380656, 411520, 432096, 475820, 493824, 497280, 499611, 540120, 570984, 576128, 617280, 666148, 713730, 720160, 761312, 823040, 832685, 864192, 951640, 994560, 999222, 1080240, 1141968, 1152256, 1234560, 1332296, 1427460, 1440320, 1522624, 1665370, 1728384, 1903280, 1998444, 2160480, 2283936, 2469120, 2498055, 2664592, 2854920, 2880640, 3045248, 3330740, 3456768, 3806560, 3996888, 4320960, 4567872, 4996110, 5329184, 5709840, 5761280, 6090496, 6661480, 7613120, 7993776, 8641920, 9135744, 9992220, 10658368, 11419680, 13322960, 15226240, 15987552, 17283840, 18271488, 19984440, 21316736, 22839360, 26645920, 30452480, 31975104, 39968880, 42633472, 45678720, 53291840, 63950208, 79937760, 91357440, 106583680, 127900416, 159875520, 213167360, 319751040, 639502080]

約数ペア:

[(1, 639502080), (2, 319751040), (3, 213167360), (4, 159875520), (5, 127900416), (6, 106583680), (7, 91357440), (8, 79937760), (10, 63950208), (12, 53291840), (14, 45678720), (15, 42633472), (16, 39968880), (20, 31975104), (21, 30452480), (24, 26645920), (28, 22839360), (30, 21316736), (32, 19984440), (35, 18271488), (37, 17283840), (40, 15987552), (42, 15226240), (48, 13322960), (56, 11419680), (60, 10658368), (64, 9992220), (70, 9135744), (74, 8641920), (80, 7993776), (84, 7613120), (96, 6661480), (105, 6090496), (111, 5761280), (112, 5709840), (120, 5329184), (128, 4996110), (140, 4567872), (148, 4320960), (160, 3996888), (168, 3806560), (185, 3456768), (192, 3330740), (210, 3045248), (222, 2880640), (224, 2854920), (240, 2664592), (256, 2498055), (259, 2469120), (280, 2283936), (296, 2160480), (320, 1998444), (336, 1903280), (370, 1728384), (384, 1665370), (420, 1522624), (444, 1440320), (448, 1427460), (480, 1332296), (518, 1234560), (555, 1152256), (560, 1141968), (592, 1080240), (640, 999222), (643, 994560), (672, 951640), (740, 864192), (768, 832685), (777, 823040), (840, 761312), (888, 720160), (896, 713730), (960, 666148), (1036, 617280), (1110, 576128), (1120, 570984), (1184, 540120), (1280, 499611), (1286, 497280), (1295, 493824), (1344, 475820), (1480, 432096), (1554, 411520), (1680, 380656), (1776, 360080), (1792, 356865), (1920, 333074), (1929, 331520), (2072, 308640), (2220, 288064), (2240, 285492), (2368, 270060), (2572, 248640), (2590, 246912), (2688, 237910), (2960, 216048), (3108, 205760), (3215, 198912), (3360, 190328), (3552, 180040), (3840, 166537), (3858, 165760), (3885, 164608), (4144, 154320), (4440, 144032), (4480, 142746), (4501, 142080), (4736, 135030), (5144, 124320), (5180, 123456), (5376, 118955), (5920, 108024), (6216, 102880), (6430, 99456), (6720, 95164), (7104, 90020), (7716, 82880), (7770, 82304), (8288, 77160), (8880, 72016), (8960, 71373), (9002, 71040), (9472, 67515), (9645, 66304), (10288, 62160), (10360, 61728), (11840, 54012), (12432, 51440), (12860, 49728), (13440, 47582), (13503, 47360), (14208, 45010), (15432, 41440), (15540, 41152), (16576, 38580), (17760, 36008), (18004, 35520), (19290, 33152), (20576, 31080), (20720, 30864), (22505, 28416), (23680, 27006), (23791, 26880), (24864, 25720)]