81362320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78233}}^1$

素因数の和:78259

約数の個数: 40

約数和(自身を含む): 203721336

約数和(自身を除く): 122359016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 78233, 156466, 312932, 391165, 625864, 782330, 1017029, 1251728, 1564660, 2034058, 3129320, 4068116, 5085145, 6258640, 8136232, 10170290, 16272464, 20340580, 40681160, 81362320]

約数ペア:

[(1, 81362320), (2, 40681160), (4, 20340580), (5, 16272464), (8, 10170290), (10, 8136232), (13, 6258640), (16, 5085145), (20, 4068116), (26, 3129320), (40, 2034058), (52, 1564660), (65, 1251728), (80, 1017029), (104, 782330), (130, 625864), (208, 391165), (260, 312932), (520, 156466), (1040, 78233)]