25581560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 34293640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 139, 172, 214, 215, 278, 344, 428, 430, 535, 556, 695, 856, 860, 1070, 1112, 1390, 1720, 2140, 2780, 4280, 4601, 5560, 5977, 9202, 11954, 14873, 18404, 23005, 23908, 29746, 29885, 36808, 46010, 47816, 59492, 59770, 74365, 92020, 118984, 119540, 148730, 184040, 239080, 297460, 594920, 639539, 1279078, 2558156, 3197695, 5116312, 6395390, 12790780, 25581560]

約数ペア:

[(1, 25581560), (2, 12790780), (4, 6395390), (5, 5116312), (8, 3197695), (10, 2558156), (20, 1279078), (40, 639539), (43, 594920), (86, 297460), (107, 239080), (139, 184040), (172, 148730), (214, 119540), (215, 118984), (278, 92020), (344, 74365), (428, 59770), (430, 59492), (535, 47816), (556, 46010), (695, 36808), (856, 29885), (860, 29746), (1070, 23908), (1112, 23005), (1390, 18404), (1720, 14873), (2140, 11954), (2780, 9202), (4280, 5977), (4601, 5560)]