81216250

素因数分解:

$2^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{1511}}^1$

素因数の和:1576

約数の個数: 40

約数和(自身を含む): 155875104

約数和(自身を除く): 74658854

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 430, 625, 1075, 1250, 1511, 2150, 3022, 5375, 7555, 10750, 15110, 26875, 37775, 53750, 64973, 75550, 129946, 188875, 324865, 377750, 649730, 944375, 1624325, 1888750, 3248650, 8121625, 16243250, 40608125, 81216250]

約数ペア:

[(1, 81216250), (2, 40608125), (5, 16243250), (10, 8121625), (25, 3248650), (43, 1888750), (50, 1624325), (86, 944375), (125, 649730), (215, 377750), (250, 324865), (430, 188875), (625, 129946), (1075, 75550), (1250, 64973), (1511, 53750), (2150, 37775), (3022, 26875), (5375, 15110), (7555, 10750)]