1640722560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{373}}^1$

素因数の和:503

約数の個数: 256

約数和(自身を含む): 5493312000

約数和(自身を除く): 3852589440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 79, 80, 87, 96, 116, 120, 128, 145, 158, 160, 174, 192, 232, 237, 240, 290, 316, 320, 348, 373, 384, 395, 435, 464, 474, 480, 580, 632, 640, 696, 746, 790, 870, 928, 948, 960, 1119, 1160, 1185, 1264, 1392, 1492, 1580, 1740, 1856, 1865, 1896, 1920, 2238, 2291, 2320, 2370, 2528, 2784, 2984, 3160, 3480, 3712, 3730, 3792, 4476, 4582, 4640, 4740, 5056, 5568, 5595, 5968, 6320, 6873, 6960, 7460, 7584, 8952, 9164, 9280, 9480, 10112, 10817, 11136, 11190, 11455, 11936, 12640, 13746, 13920, 14920, 15168, 17904, 18328, 18560, 18960, 21634, 22380, 22910, 23872, 25280, 27492, 27840, 29467, 29840, 30336, 32451, 34365, 35808, 36656, 37920, 43268, 44760, 45820, 47744, 50560, 54085, 54984, 55680, 58934, 59680, 64902, 68730, 71616, 73312, 75840, 86536, 88401, 89520, 91640, 108170, 109968, 117868, 119360, 129804, 137460, 143232, 146624, 147335, 151680, 162255, 173072, 176802, 179040, 183280, 216340, 219936, 235736, 238720, 259608, 274920, 293248, 294670, 324510, 346144, 353604, 358080, 366560, 432680, 439872, 442005, 471472, 519216, 549840, 589340, 649020, 692288, 707208, 716160, 733120, 854543, 865360, 879744, 884010, 942944, 1038432, 1099680, 1178680, 1298040, 1384576, 1414416, 1466240, 1709086, 1730720, 1768020, 1885888, 2076864, 2199360, 2357360, 2563629, 2596080, 2828832, 3418172, 3461440, 3536040, 3771776, 4153728, 4272715, 4398720, 4714720, 5127258, 5192160, 5657664, 6836344, 6922880, 7072080, 8545430, 9429440, 10254516, 10384320, 11315328, 12818145, 13672688, 14144160, 17090860, 18858880, 20509032, 20768640, 25636290, 27345376, 28288320, 34181720, 41018064, 51272580, 54690752, 56576640, 68363440, 82036128, 102545160, 109381504, 136726880, 164072256, 205090320, 273453760, 328144512, 410180640, 546907520, 820361280, 1640722560]

約数ペア:

[(1, 1640722560), (2, 820361280), (3, 546907520), (4, 410180640), (5, 328144512), (6, 273453760), (8, 205090320), (10, 164072256), (12, 136726880), (15, 109381504), (16, 102545160), (20, 82036128), (24, 68363440), (29, 56576640), (30, 54690752), (32, 51272580), (40, 41018064), (48, 34181720), (58, 28288320), (60, 27345376), (64, 25636290), (79, 20768640), (80, 20509032), (87, 18858880), (96, 17090860), (116, 14144160), (120, 13672688), (128, 12818145), (145, 11315328), (158, 10384320), (160, 10254516), (174, 9429440), (192, 8545430), (232, 7072080), (237, 6922880), (240, 6836344), (290, 5657664), (316, 5192160), (320, 5127258), (348, 4714720), (373, 4398720), (384, 4272715), (395, 4153728), (435, 3771776), (464, 3536040), (474, 3461440), (480, 3418172), (580, 2828832), (632, 2596080), (640, 2563629), (696, 2357360), (746, 2199360), (790, 2076864), (870, 1885888), (928, 1768020), (948, 1730720), (960, 1709086), (1119, 1466240), (1160, 1414416), (1185, 1384576), (1264, 1298040), (1392, 1178680), (1492, 1099680), (1580, 1038432), (1740, 942944), (1856, 884010), (1865, 879744), (1896, 865360), (1920, 854543), (2238, 733120), (2291, 716160), (2320, 707208), (2370, 692288), (2528, 649020), (2784, 589340), (2984, 549840), (3160, 519216), (3480, 471472), (3712, 442005), (3730, 439872), (3792, 432680), (4476, 366560), (4582, 358080), (4640, 353604), (4740, 346144), (5056, 324510), (5568, 294670), (5595, 293248), (5968, 274920), (6320, 259608), (6873, 238720), (6960, 235736), (7460, 219936), (7584, 216340), (8952, 183280), (9164, 179040), (9280, 176802), (9480, 173072), (10112, 162255), (10817, 151680), (11136, 147335), (11190, 146624), (11455, 143232), (11936, 137460), (12640, 129804), (13746, 119360), (13920, 117868), (14920, 109968), (15168, 108170), (17904, 91640), (18328, 89520), (18560, 88401), (18960, 86536), (21634, 75840), (22380, 73312), (22910, 71616), (23872, 68730), (25280, 64902), (27492, 59680), (27840, 58934), (29467, 55680), (29840, 54984), (30336, 54085), (32451, 50560), (34365, 47744), (35808, 45820), (36656, 44760), (37920, 43268)]