12851420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3229}}^1$

素因数の和:3437

約数の個数: 24

約数和(自身を含む): 27132000

約数和(自身を除く): 14280580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3229, 3980, 6458, 12916, 16145, 32290, 64580, 642571, 1285142, 2570284, 3212855, 6425710, 12851420]

約数ペア:

[(1, 12851420), (2, 6425710), (4, 3212855), (5, 2570284), (10, 1285142), (20, 642571), (199, 64580), (398, 32290), (796, 16145), (995, 12916), (1990, 6458), (3229, 3980)]