81036320

素因数分解:

$2^5\times 5^1\times {\mathrm{571}}^1\times {\mathrm{887}}^1$

素因数の和:1473

約数の個数: 48

約数和(自身を含む): 191999808

約数和(自身を除く): 110963488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 571, 887, 1142, 1774, 2284, 2855, 3548, 4435, 4568, 5710, 7096, 8870, 9136, 11420, 14192, 17740, 18272, 22840, 28384, 35480, 45680, 70960, 91360, 141920, 506477, 1012954, 2025908, 2532385, 4051816, 5064770, 8103632, 10129540, 16207264, 20259080, 40518160, 81036320]

約数ペア:

[(1, 81036320), (2, 40518160), (4, 20259080), (5, 16207264), (8, 10129540), (10, 8103632), (16, 5064770), (20, 4051816), (32, 2532385), (40, 2025908), (80, 1012954), (160, 506477), (571, 141920), (887, 91360), (1142, 70960), (1774, 45680), (2284, 35480), (2855, 28384), (3548, 22840), (4435, 18272), (4568, 17740), (5710, 14192), (7096, 11420), (8870, 9136)]