25236680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 65370240

約数和(自身を除く): 40133560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 386, 467, 772, 934, 965, 1351, 1544, 1868, 1930, 2335, 2702, 3269, 3736, 3860, 4670, 5404, 6538, 6755, 7720, 9340, 10808, 13076, 13510, 16345, 18680, 26152, 27020, 32690, 54040, 65380, 90131, 130760, 180262, 360524, 450655, 630917, 721048, 901310, 1261834, 1802620, 2523668, 3154585, 3605240, 5047336, 6309170, 12618340, 25236680]

約数ペア:

[(1, 25236680), (2, 12618340), (4, 6309170), (5, 5047336), (7, 3605240), (8, 3154585), (10, 2523668), (14, 1802620), (20, 1261834), (28, 901310), (35, 721048), (40, 630917), (56, 450655), (70, 360524), (140, 180262), (193, 130760), (280, 90131), (386, 65380), (467, 54040), (772, 32690), (934, 27020), (965, 26152), (1351, 18680), (1544, 16345), (1868, 13510), (1930, 13076), (2335, 10808), (2702, 9340), (3269, 7720), (3736, 6755), (3860, 6538), (4670, 5404)]