289609970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{117251}}^1$

素因数の和:117290

約数の個数: 32

約数和(自身を含む): 590950080

約数和(自身を除く): 301340110

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 117251, 234502, 586255, 1172510, 1524263, 2227769, 3048526, 4455538, 7621315, 11138845, 15242630, 22277690, 28960997, 57921994, 144804985, 289609970]

約数ペア:

[(1, 289609970), (2, 144804985), (5, 57921994), (10, 28960997), (13, 22277690), (19, 15242630), (26, 11138845), (38, 7621315), (65, 4455538), (95, 3048526), (130, 2227769), (190, 1524263), (247, 1172510), (494, 586255), (1235, 234502), (2470, 117251)]