65490640

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3671}}^1$

素因数の和:3907

約数の個数: 40

約数和(自身を含む): 152990208

約数和(自身を除く): 87499568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 3671, 4460, 7342, 8920, 14684, 17840, 18355, 29368, 36710, 58736, 73420, 146840, 293680, 818633, 1637266, 3274532, 4093165, 6549064, 8186330, 13098128, 16372660, 32745320, 65490640]

約数ペア:

[(1, 65490640), (2, 32745320), (4, 16372660), (5, 13098128), (8, 8186330), (10, 6549064), (16, 4093165), (20, 3274532), (40, 1637266), (80, 818633), (223, 293680), (446, 146840), (892, 73420), (1115, 58736), (1784, 36710), (2230, 29368), (3568, 18355), (3671, 17840), (4460, 14684), (7342, 8920)]