281680360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541693}}^1$

素因数の和:541717

約数の個数: 32

約数和(自身を含む): 682534440

約数和(自身を除く): 400854080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 541693, 1083386, 2166772, 2708465, 4333544, 5416930, 7042009, 10833860, 14084018, 21667720, 28168036, 35210045, 56336072, 70420090, 140840180, 281680360]

約数ペア:

[(1, 281680360), (2, 140840180), (4, 70420090), (5, 56336072), (8, 35210045), (10, 28168036), (13, 21667720), (20, 14084018), (26, 10833860), (40, 7042009), (52, 5416930), (65, 4333544), (104, 2708465), (130, 2166772), (260, 1083386), (520, 541693)]