12457420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10211}}^1$

素因数の和:10281

約数の個数: 24

約数和(自身を含む): 26592048

約数和(自身を除く): 14134628

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 10211, 20422, 40844, 51055, 102110, 204220, 622871, 1245742, 2491484, 3114355, 6228710, 12457420]

約数ペア:

[(1, 12457420), (2, 6228710), (4, 3114355), (5, 2491484), (10, 1245742), (20, 622871), (61, 204220), (122, 102110), (244, 51055), (305, 40844), (610, 20422), (1220, 10211)]