280607500

素因数分解:

$2^2\times 5^4\times {\mathrm{107}}^1\times {\mathrm{1049}}^1$

素因数の和:1180

約数の個数: 60

約数和(自身を含む): 619957800

約数和(自身を除く): 339350300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 125, 214, 250, 428, 500, 535, 625, 1049, 1070, 1250, 2098, 2140, 2500, 2675, 4196, 5245, 5350, 10490, 10700, 13375, 20980, 26225, 26750, 52450, 53500, 66875, 104900, 112243, 131125, 133750, 224486, 262250, 267500, 448972, 524500, 561215, 655625, 1122430, 1311250, 2244860, 2622500, 2806075, 5612150, 11224300, 14030375, 28060750, 56121500, 70151875, 140303750, 280607500]

約数ペア:

[(1, 280607500), (2, 140303750), (4, 70151875), (5, 56121500), (10, 28060750), (20, 14030375), (25, 11224300), (50, 5612150), (100, 2806075), (107, 2622500), (125, 2244860), (214, 1311250), (250, 1122430), (428, 655625), (500, 561215), (535, 524500), (625, 448972), (1049, 267500), (1070, 262250), (1250, 224486), (2098, 133750), (2140, 131125), (2500, 112243), (2675, 104900), (4196, 66875), (5245, 53500), (5350, 52450), (10490, 26750), (10700, 26225), (13375, 20980)]