65241320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 152349120

約数和(自身を除く): 87107800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 83, 86, 166, 172, 215, 332, 344, 415, 430, 457, 664, 830, 860, 914, 1660, 1720, 1828, 2285, 3320, 3569, 3656, 4570, 7138, 9140, 14276, 17845, 18280, 19651, 28552, 35690, 37931, 39302, 71380, 75862, 78604, 98255, 142760, 151724, 157208, 189655, 196510, 303448, 379310, 393020, 758620, 786040, 1517240, 1631033, 3262066, 6524132, 8155165, 13048264, 16310330, 32620660, 65241320]

約数ペア:

[(1, 65241320), (2, 32620660), (4, 16310330), (5, 13048264), (8, 8155165), (10, 6524132), (20, 3262066), (40, 1631033), (43, 1517240), (83, 786040), (86, 758620), (166, 393020), (172, 379310), (215, 303448), (332, 196510), (344, 189655), (415, 157208), (430, 151724), (457, 142760), (664, 98255), (830, 78604), (860, 75862), (914, 71380), (1660, 39302), (1720, 37931), (1828, 35690), (2285, 28552), (3320, 19651), (3569, 18280), (3656, 17845), (4570, 14276), (7138, 9140)]