20161388185

素因数分解:

$5^1\times {\mathrm{23}}^3\times {\mathrm{181}}^1\times {\mathrm{1831}}^1$

素因数の和:2086

約数の個数: 32

約数和(自身を含む): 25446919680

約数和(自身を除く): 5285531495

約数列:

[1, 5, 23, 115, 181, 529, 905, 1831, 2645, 4163, 9155, 12167, 20815, 42113, 60835, 95749, 210565, 331411, 478745, 968599, 1657055, 2202227, 4842995, 7622453, 11011135, 22277777, 38112265, 111388885, 175316419, 876582095, 4032277637, 20161388185]

約数ペア:

[(1, 20161388185), (5, 4032277637), (23, 876582095), (115, 175316419), (181, 111388885), (529, 38112265), (905, 22277777), (1831, 11011135), (2645, 7622453), (4163, 4842995), (9155, 2202227), (12167, 1657055), (20815, 968599), (42113, 478745), (60835, 331411), (95749, 210565)]