321181280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:677

約数の個数: 144

約数和(自身を含む): 896658336

約数和(自身を除く): 575477056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 160, 196, 224, 245, 280, 284, 355, 392, 490, 497, 560, 568, 577, 710, 784, 980, 994, 1120, 1136, 1154, 1420, 1568, 1960, 1988, 2272, 2308, 2485, 2840, 2885, 3479, 3920, 3976, 4039, 4616, 4970, 5680, 5770, 6958, 7840, 7952, 8078, 9232, 9940, 11360, 11540, 13916, 15904, 16156, 17395, 18464, 19880, 20195, 23080, 27832, 28273, 32312, 34790, 39760, 40390, 40967, 46160, 55664, 56546, 64624, 69580, 79520, 80780, 81934, 92320, 111328, 113092, 129248, 139160, 141365, 161560, 163868, 204835, 226184, 278320, 282730, 286769, 323120, 327736, 409670, 452368, 556640, 565460, 573538, 646240, 655472, 819340, 904736, 1130920, 1147076, 1310944, 1433845, 1638680, 2007383, 2261840, 2294152, 2867690, 3277360, 4014766, 4523680, 4588304, 5735380, 6554720, 8029532, 9176608, 10036915, 11470760, 16059064, 20073830, 22941520, 32118128, 40147660, 45883040, 64236256, 80295320, 160590640, 321181280]

約数ペア:

[(1, 321181280), (2, 160590640), (4, 80295320), (5, 64236256), (7, 45883040), (8, 40147660), (10, 32118128), (14, 22941520), (16, 20073830), (20, 16059064), (28, 11470760), (32, 10036915), (35, 9176608), (40, 8029532), (49, 6554720), (56, 5735380), (70, 4588304), (71, 4523680), (80, 4014766), (98, 3277360), (112, 2867690), (140, 2294152), (142, 2261840), (160, 2007383), (196, 1638680), (224, 1433845), (245, 1310944), (280, 1147076), (284, 1130920), (355, 904736), (392, 819340), (490, 655472), (497, 646240), (560, 573538), (568, 565460), (577, 556640), (710, 452368), (784, 409670), (980, 327736), (994, 323120), (1120, 286769), (1136, 282730), (1154, 278320), (1420, 226184), (1568, 204835), (1960, 163868), (1988, 161560), (2272, 141365), (2308, 139160), (2485, 129248), (2840, 113092), (2885, 111328), (3479, 92320), (3920, 81934), (3976, 80780), (4039, 79520), (4616, 69580), (4970, 64624), (5680, 56546), (5770, 55664), (6958, 46160), (7840, 40967), (7952, 40390), (8078, 39760), (9232, 34790), (9940, 32312), (11360, 28273), (11540, 27832), (13916, 23080), (15904, 20195), (16156, 19880), (17395, 18464)]