51401072

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{19709}}^1$

素因数の和:19880

約数の個数: 20

約数和(自身を含む): 100205640

約数和(自身を除く): 48804568

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 19709, 39418, 78836, 157672, 315344, 3212567, 6425134, 12850268, 25700536, 51401072]

約数ペア:

[(1, 51401072), (2, 25700536), (4, 12850268), (8, 6425134), (16, 3212567), (163, 315344), (326, 157672), (652, 78836), (1304, 39418), (2608, 19709)]