1365680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 3257232

約数和(自身を除く): 1891552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 397, 430, 688, 794, 860, 1588, 1720, 1985, 3176, 3440, 3970, 6352, 7940, 15880, 17071, 31760, 34142, 68284, 85355, 136568, 170710, 273136, 341420, 682840, 1365680]

約数ペア:

[(1, 1365680), (2, 682840), (4, 341420), (5, 273136), (8, 170710), (10, 136568), (16, 85355), (20, 68284), (40, 34142), (43, 31760), (80, 17071), (86, 15880), (172, 7940), (215, 6352), (344, 3970), (397, 3440), (430, 3176), (688, 1985), (794, 1720), (860, 1588)]