12628540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 28224000

約数和(自身を除く): 15595460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 199, 334, 380, 398, 668, 796, 835, 995, 1670, 1990, 3173, 3340, 3781, 3980, 6346, 7562, 12692, 15124, 15865, 18905, 31730, 33233, 37810, 63460, 66466, 75620, 132932, 166165, 332330, 631427, 664660, 1262854, 2525708, 3157135, 6314270, 12628540]

約数ペア:

[(1, 12628540), (2, 6314270), (4, 3157135), (5, 2525708), (10, 1262854), (19, 664660), (20, 631427), (38, 332330), (76, 166165), (95, 132932), (167, 75620), (190, 66466), (199, 63460), (334, 37810), (380, 33233), (398, 31730), (668, 18905), (796, 15865), (835, 15124), (995, 12692), (1670, 7562), (1990, 6346), (3173, 3980), (3340, 3781)]