205651820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49199}}^1$

素因数の和:49238

約数の個数: 48

約数和(自身を含む): 495936000

約数和(自身を除く): 290284180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 49199, 98398, 196796, 245995, 491990, 541189, 934781, 983980, 1082378, 1869562, 2164756, 2705945, 3739124, 4673905, 5411890, 9347810, 10282591, 10823780, 18695620, 20565182, 41130364, 51412955, 102825910, 205651820]

約数ペア:

[(1, 205651820), (2, 102825910), (4, 51412955), (5, 41130364), (10, 20565182), (11, 18695620), (19, 10823780), (20, 10282591), (22, 9347810), (38, 5411890), (44, 4673905), (55, 3739124), (76, 2705945), (95, 2164756), (110, 1869562), (190, 1082378), (209, 983980), (220, 934781), (380, 541189), (418, 491990), (836, 245995), (1045, 196796), (2090, 98398), (4180, 49199)]