64380925

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 95823232

約数和(自身を除く): 31442307

約数列:

[1, 5, 7, 25, 35, 37, 61, 163, 175, 185, 259, 305, 427, 815, 925, 1141, 1295, 1525, 2135, 2257, 4075, 5705, 6031, 6475, 9943, 10675, 11285, 15799, 28525, 30155, 42217, 49715, 56425, 69601, 78995, 150775, 211085, 248575, 348005, 367891, 394975, 1055425, 1740025, 1839455, 2575237, 9197275, 12876185, 64380925]

約数ペア:

[(1, 64380925), (5, 12876185), (7, 9197275), (25, 2575237), (35, 1839455), (37, 1740025), (61, 1055425), (163, 394975), (175, 367891), (185, 348005), (259, 248575), (305, 211085), (427, 150775), (815, 78995), (925, 69601), (1141, 56425), (1295, 49715), (1525, 42217), (2135, 30155), (2257, 28525), (4075, 15799), (5705, 11285), (6031, 10675), (6475, 9943)]