79942180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{128939}}^1$

素因数の和:128979

約数の個数: 24

約数和(自身を含む): 173295360

約数和(自身を除く): 93353180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 128939, 257878, 515756, 644695, 1289390, 2578780, 3997109, 7994218, 15988436, 19985545, 39971090, 79942180]

約数ペア:

[(1, 79942180), (2, 39971090), (4, 19985545), (5, 15988436), (10, 7994218), (20, 3997109), (31, 2578780), (62, 1289390), (124, 644695), (155, 515756), (310, 257878), (620, 128939)]