858477980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^2\times {\mathrm{5419}}^1$

素因数の和:5606

約数の個数: 36

約数和(自身を含む): 1823624040

約数和(自身を除く): 965146060

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 5419, 7921, 10838, 15842, 21676, 27095, 31684, 39605, 54190, 79210, 108380, 158420, 482291, 964582, 1929164, 2411455, 4822910, 9645820, 42923899, 85847798, 171695596, 214619495, 429238990, 858477980]

約数ペア:

[(1, 858477980), (2, 429238990), (4, 214619495), (5, 171695596), (10, 85847798), (20, 42923899), (89, 9645820), (178, 4822910), (356, 2411455), (445, 1929164), (890, 964582), (1780, 482291), (5419, 158420), (7921, 108380), (10838, 79210), (15842, 54190), (21676, 39605), (27095, 31684)]