28711250

素因数分解:

$2^1\times 5^4\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 40

約数和(自身を含む): 54582528

約数和(自身を除く): 25871278

約数列:

[1, 2, 5, 10, 25, 50, 103, 125, 206, 223, 250, 446, 515, 625, 1030, 1115, 1250, 2230, 2575, 5150, 5575, 11150, 12875, 22969, 25750, 27875, 45938, 55750, 64375, 114845, 128750, 139375, 229690, 278750, 574225, 1148450, 2871125, 5742250, 14355625, 28711250]

約数ペア:

[(1, 28711250), (2, 14355625), (5, 5742250), (10, 2871125), (25, 1148450), (50, 574225), (103, 278750), (125, 229690), (206, 139375), (223, 128750), (250, 114845), (446, 64375), (515, 55750), (625, 45938), (1030, 27875), (1115, 25750), (1250, 22969), (2230, 12875), (2575, 11150), (5150, 5575)]