64847380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13127}}^1$

素因数の和:13168

約数の個数: 48

約数和(自身を含む): 154385280

約数和(自身を除く): 89537900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 13127, 26254, 52508, 65635, 131270, 170651, 249413, 262540, 341302, 498826, 682604, 853255, 997652, 1247065, 1706510, 2494130, 3242369, 3413020, 4988260, 6484738, 12969476, 16211845, 32423690, 64847380]

約数ペア:

[(1, 64847380), (2, 32423690), (4, 16211845), (5, 12969476), (10, 6484738), (13, 4988260), (19, 3413020), (20, 3242369), (26, 2494130), (38, 1706510), (52, 1247065), (65, 997652), (76, 853255), (95, 682604), (130, 498826), (190, 341302), (247, 262540), (260, 249413), (380, 170651), (494, 131270), (988, 65635), (1235, 52508), (2470, 26254), (4940, 13127)]