65394440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26801}}^1$

素因数の和:26873

約数の個数: 32

約数和(自身を含む): 149555160

約数和(自身を除く): 84160720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26801, 53602, 107204, 134005, 214408, 268010, 536020, 1072040, 1634861, 3269722, 6539444, 8174305, 13078888, 16348610, 32697220, 65394440]

約数ペア:

[(1, 65394440), (2, 32697220), (4, 16348610), (5, 13078888), (8, 8174305), (10, 6539444), (20, 3269722), (40, 1634861), (61, 1072040), (122, 536020), (244, 268010), (305, 214408), (488, 134005), (610, 107204), (1220, 53602), (2440, 26801)]