81529890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{599}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 211680000

約数和(自身を除く): 130150110

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 349, 390, 599, 698, 1047, 1198, 1745, 1797, 2094, 2995, 3490, 3594, 4537, 5235, 5990, 7787, 8985, 9074, 10470, 13611, 15574, 17970, 22685, 23361, 27222, 38935, 45370, 46722, 68055, 77870, 116805, 136110, 209051, 233610, 418102, 627153, 1045255, 1254306, 2090510, 2717663, 3135765, 5435326, 6271530, 8152989, 13588315, 16305978, 27176630, 40764945, 81529890]

約数ペア:

[(1, 81529890), (2, 40764945), (3, 27176630), (5, 16305978), (6, 13588315), (10, 8152989), (13, 6271530), (15, 5435326), (26, 3135765), (30, 2717663), (39, 2090510), (65, 1254306), (78, 1045255), (130, 627153), (195, 418102), (349, 233610), (390, 209051), (599, 136110), (698, 116805), (1047, 77870), (1198, 68055), (1745, 46722), (1797, 45370), (2094, 38935), (2995, 27222), (3490, 23361), (3594, 22685), (4537, 17970), (5235, 15574), (5990, 13611), (7787, 10470), (8985, 9074)]