857960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 1960200

約数和(自身を除く): 1102240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 241, 356, 445, 482, 712, 890, 964, 1205, 1780, 1928, 2410, 3560, 4820, 9640, 21449, 42898, 85796, 107245, 171592, 214490, 428980, 857960]

約数ペア:

[(1, 857960), (2, 428980), (4, 214490), (5, 171592), (8, 107245), (10, 85796), (20, 42898), (40, 21449), (89, 9640), (178, 4820), (241, 3560), (356, 2410), (445, 1928), (482, 1780), (712, 1205), (890, 964)]