31474160

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{991}}^1$

素因数の和:1401

約数の個数: 40

約数和(自身を含む): 73435776

約数和(自身を除く): 41961616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 991, 1588, 1982, 1985, 3176, 3964, 3970, 4955, 6352, 7928, 7940, 9910, 15856, 15880, 19820, 31760, 39640, 79280, 393427, 786854, 1573708, 1967135, 3147416, 3934270, 6294832, 7868540, 15737080, 31474160]

約数ペア:

[(1, 31474160), (2, 15737080), (4, 7868540), (5, 6294832), (8, 3934270), (10, 3147416), (16, 1967135), (20, 1573708), (40, 786854), (80, 393427), (397, 79280), (794, 39640), (991, 31760), (1588, 19820), (1982, 15880), (1985, 15856), (3176, 9910), (3964, 7940), (3970, 7928), (4955, 6352)]