218314940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2887}}^1$

素因数の和:3114

約数の個数: 48

約数和(自身を含む): 485184000

約数和(自身を除く): 266869060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 2887, 3781, 3980, 5774, 7562, 11548, 14435, 15124, 18905, 28870, 37810, 54853, 57740, 75620, 109706, 219412, 274265, 548530, 574513, 1097060, 1149026, 2298052, 2872565, 5745130, 10915747, 11490260, 21831494, 43662988, 54578735, 109157470, 218314940]

約数ペア:

[(1, 218314940), (2, 109157470), (4, 54578735), (5, 43662988), (10, 21831494), (19, 11490260), (20, 10915747), (38, 5745130), (76, 2872565), (95, 2298052), (190, 1149026), (199, 1097060), (380, 574513), (398, 548530), (796, 274265), (995, 219412), (1990, 109706), (2887, 75620), (3781, 57740), (3980, 54853), (5774, 37810), (7562, 28870), (11548, 18905), (14435, 15124)]