66705040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19391}}^1$

素因数の和:19447

約数の個数: 40

約数和(自身を含む): 158704128

約数和(自身を除く): 91999088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19391, 38782, 77564, 96955, 155128, 193910, 310256, 387820, 775640, 833813, 1551280, 1667626, 3335252, 4169065, 6670504, 8338130, 13341008, 16676260, 33352520, 66705040]

約数ペア:

[(1, 66705040), (2, 33352520), (4, 16676260), (5, 13341008), (8, 8338130), (10, 6670504), (16, 4169065), (20, 3335252), (40, 1667626), (43, 1551280), (80, 833813), (86, 775640), (172, 387820), (215, 310256), (344, 193910), (430, 155128), (688, 96955), (860, 77564), (1720, 38782), (3440, 19391)]