201475280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:612

約数の個数: 80

約数和(自身を含む): 482112000

約数和(自身を除く): 280636720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 79, 80, 142, 158, 284, 316, 355, 395, 449, 568, 632, 710, 790, 898, 1136, 1264, 1420, 1580, 1796, 2245, 2840, 3160, 3592, 4490, 5609, 5680, 6320, 7184, 8980, 11218, 17960, 22436, 28045, 31879, 35471, 35920, 44872, 56090, 63758, 70942, 89744, 112180, 127516, 141884, 159395, 177355, 224360, 255032, 283768, 318790, 354710, 448720, 510064, 567536, 637580, 709420, 1275160, 1418840, 2518441, 2550320, 2837680, 5036882, 10073764, 12592205, 20147528, 25184410, 40295056, 50368820, 100737640, 201475280]

約数ペア:

[(1, 201475280), (2, 100737640), (4, 50368820), (5, 40295056), (8, 25184410), (10, 20147528), (16, 12592205), (20, 10073764), (40, 5036882), (71, 2837680), (79, 2550320), (80, 2518441), (142, 1418840), (158, 1275160), (284, 709420), (316, 637580), (355, 567536), (395, 510064), (449, 448720), (568, 354710), (632, 318790), (710, 283768), (790, 255032), (898, 224360), (1136, 177355), (1264, 159395), (1420, 141884), (1580, 127516), (1796, 112180), (2245, 89744), (2840, 70942), (3160, 63758), (3592, 56090), (4490, 44872), (5609, 35920), (5680, 35471), (6320, 31879), (7184, 28045), (8980, 22436), (11218, 17960)]