28425425

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 43330560

約数和(自身を除く): 14905135

約数列:

[1, 5, 7, 19, 25, 35, 83, 95, 103, 133, 175, 415, 475, 515, 581, 665, 721, 1577, 1957, 2075, 2575, 2905, 3325, 3605, 7885, 8549, 9785, 11039, 13699, 14525, 18025, 39425, 42745, 48925, 55195, 59843, 68495, 162431, 213725, 275975, 299215, 342475, 812155, 1137017, 1496075, 4060775, 5685085, 28425425]

約数ペア:

[(1, 28425425), (5, 5685085), (7, 4060775), (19, 1496075), (25, 1137017), (35, 812155), (83, 342475), (95, 299215), (103, 275975), (133, 213725), (175, 162431), (415, 68495), (475, 59843), (515, 55195), (581, 48925), (665, 42745), (721, 39425), (1577, 18025), (1957, 14525), (2075, 13699), (2575, 11039), (2905, 9785), (3325, 8549), (3605, 7885)]