2021280625

素因数分解:

$5^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5077}}^1$

素因数の和:5124

約数の個数: 60

約数和(自身を含む): 3164802564

約数和(自身を除く): 1143521939

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 125, 175, 245, 325, 455, 625, 637, 875, 1225, 1625, 2275, 3185, 4375, 5077, 6125, 8125, 11375, 15925, 25385, 30625, 35539, 56875, 66001, 79625, 126925, 177695, 248773, 330005, 398125, 462007, 634625, 888475, 1243865, 1650025, 2310035, 3173125, 3234049, 4442375, 6219325, 8250125, 11550175, 16170245, 22211875, 31096625, 41250625, 57750875, 80851225, 155483125, 288754375, 404256125, 2021280625]

約数ペア:

[(1, 2021280625), (5, 404256125), (7, 288754375), (13, 155483125), (25, 80851225), (35, 57750875), (49, 41250625), (65, 31096625), (91, 22211875), (125, 16170245), (175, 11550175), (245, 8250125), (325, 6219325), (455, 4442375), (625, 3234049), (637, 3173125), (875, 2310035), (1225, 1650025), (1625, 1243865), (2275, 888475), (3185, 634625), (4375, 462007), (5077, 398125), (6125, 330005), (8125, 248773), (11375, 177695), (15925, 126925), (25385, 79625), (30625, 66001), (35539, 56875)]