25415260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 57859200

約数和(自身を除く): 32443940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 409, 478, 818, 956, 1195, 1636, 2045, 2390, 3107, 4090, 4780, 5317, 6214, 8180, 10634, 12428, 15535, 21268, 26585, 31070, 53170, 62140, 97751, 106340, 195502, 391004, 488755, 977510, 1270763, 1955020, 2541526, 5083052, 6353815, 12707630, 25415260]

約数ペア:

[(1, 25415260), (2, 12707630), (4, 6353815), (5, 5083052), (10, 2541526), (13, 1955020), (20, 1270763), (26, 977510), (52, 488755), (65, 391004), (130, 195502), (239, 106340), (260, 97751), (409, 62140), (478, 53170), (818, 31070), (956, 26585), (1195, 21268), (1636, 15535), (2045, 12428), (2390, 10634), (3107, 8180), (4090, 6214), (4780, 5317)]