2989640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 6946560

約数和(自身を除く): 3956920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2411, 4822, 9644, 12055, 19288, 24110, 48220, 74741, 96440, 149482, 298964, 373705, 597928, 747410, 1494820, 2989640]

約数ペア:

[(1, 2989640), (2, 1494820), (4, 747410), (5, 597928), (8, 373705), (10, 298964), (20, 149482), (31, 96440), (40, 74741), (62, 48220), (124, 24110), (155, 19288), (248, 12055), (310, 9644), (620, 4822), (1240, 2411)]