20946740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 46704000

約数和(自身を除く): 25757260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 277, 380, 398, 554, 796, 995, 1108, 1385, 1990, 2770, 3781, 3980, 5263, 5540, 7562, 10526, 15124, 18905, 21052, 26315, 37810, 52630, 55123, 75620, 105260, 110246, 220492, 275615, 551230, 1047337, 1102460, 2094674, 4189348, 5236685, 10473370, 20946740]

約数ペア:

[(1, 20946740), (2, 10473370), (4, 5236685), (5, 4189348), (10, 2094674), (19, 1102460), (20, 1047337), (38, 551230), (76, 275615), (95, 220492), (190, 110246), (199, 105260), (277, 75620), (380, 55123), (398, 52630), (554, 37810), (796, 26315), (995, 21052), (1108, 18905), (1385, 15124), (1990, 10526), (2770, 7562), (3781, 5540), (3980, 5263)]