81102320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77983}}^1$

素因数の和:78009

約数の個数: 40

約数和(自身を含む): 203070336

約数和(自身を除く): 121968016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77983, 155966, 311932, 389915, 623864, 779830, 1013779, 1247728, 1559660, 2027558, 3119320, 4055116, 5068895, 6238640, 8110232, 10137790, 16220464, 20275580, 40551160, 81102320]

約数ペア:

[(1, 81102320), (2, 40551160), (4, 20275580), (5, 16220464), (8, 10137790), (10, 8110232), (13, 6238640), (16, 5068895), (20, 4055116), (26, 3119320), (40, 2027558), (52, 1559660), (65, 1247728), (80, 1013779), (104, 779830), (130, 623864), (208, 389915), (260, 311932), (520, 155966), (1040, 77983)]