28381775

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 36810144

約数和(自身を除く): 8428369

約数列:

[1, 5, 25, 37, 61, 185, 305, 503, 925, 1525, 2257, 2515, 11285, 12575, 18611, 30683, 56425, 93055, 153415, 465275, 767075, 1135271, 5676355, 28381775]

約数ペア:

[(1, 28381775), (5, 5676355), (25, 1135271), (37, 767075), (61, 465275), (185, 153415), (305, 93055), (503, 56425), (925, 30683), (1525, 18611), (2257, 12575), (2515, 11285)]