664605040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{755233}}^1$

素因数の和:755257

約数の個数: 40

約数和(自身を含む): 1685682288

約数和(自身を除く): 1021077248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 755233, 1510466, 3020932, 3776165, 6041864, 7552330, 8307563, 12083728, 15104660, 16615126, 30209320, 33230252, 41537815, 60418640, 66460504, 83075630, 132921008, 166151260, 332302520, 664605040]

約数ペア:

[(1, 664605040), (2, 332302520), (4, 166151260), (5, 132921008), (8, 83075630), (10, 66460504), (11, 60418640), (16, 41537815), (20, 33230252), (22, 30209320), (40, 16615126), (44, 15104660), (55, 12083728), (80, 8307563), (88, 7552330), (110, 6041864), (176, 3776165), (220, 3020932), (440, 1510466), (880, 755233)]