20177031472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{535939}}^1$

素因数の和:536141

約数の個数: 40

約数和(自身を含む): 42332828720

約数和(自身を除く): 22155797248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 724, 1448, 2353, 2896, 4706, 9412, 18824, 37648, 535939, 1071878, 2143756, 4287512, 6967207, 8575024, 13934414, 27868828, 55737656, 97004959, 111475312, 194009918, 388019836, 776039672, 1261064467, 1552079344, 2522128934, 5044257868, 10088515736, 20177031472]

約数ペア:

[(1, 20177031472), (2, 10088515736), (4, 5044257868), (8, 2522128934), (13, 1552079344), (16, 1261064467), (26, 776039672), (52, 388019836), (104, 194009918), (181, 111475312), (208, 97004959), (362, 55737656), (724, 27868828), (1448, 13934414), (2353, 8575024), (2896, 6967207), (4706, 4287512), (9412, 2143756), (18824, 1071878), (37648, 535939)]