25553180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{691}}^1$

素因数の和:786

約数の個数: 36

約数和(自身を含む): 55018152

約数和(自身を除く): 29464972

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 691, 860, 1382, 1849, 2764, 3455, 3698, 6910, 7396, 9245, 13820, 18490, 29713, 36980, 59426, 118852, 148565, 297130, 594260, 1277659, 2555318, 5110636, 6388295, 12776590, 25553180]

約数ペア:

[(1, 25553180), (2, 12776590), (4, 6388295), (5, 5110636), (10, 2555318), (20, 1277659), (43, 594260), (86, 297130), (172, 148565), (215, 118852), (430, 59426), (691, 36980), (860, 29713), (1382, 18490), (1849, 13820), (2764, 9245), (3455, 7396), (3698, 6910)]