28156400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1637}}^1$

素因数の和:1698

約数の個数: 60

約数和(自身を含む): 69261192

約数和(自身を除く): 41104792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1637, 1720, 2150, 3274, 3440, 4300, 6548, 8185, 8600, 13096, 16370, 17200, 26192, 32740, 40925, 65480, 70391, 81850, 130960, 140782, 163700, 281564, 327400, 351955, 563128, 654800, 703910, 1126256, 1407820, 1759775, 2815640, 3519550, 5631280, 7039100, 14078200, 28156400]

約数ペア:

[(1, 28156400), (2, 14078200), (4, 7039100), (5, 5631280), (8, 3519550), (10, 2815640), (16, 1759775), (20, 1407820), (25, 1126256), (40, 703910), (43, 654800), (50, 563128), (80, 351955), (86, 327400), (100, 281564), (172, 163700), (200, 140782), (215, 130960), (344, 81850), (400, 70391), (430, 65480), (688, 40925), (860, 32740), (1075, 26192), (1637, 17200), (1720, 16370), (2150, 13096), (3274, 8600), (3440, 8185), (4300, 6548)]