81601276

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{3821}}^1$

素因数の和:4125

約数の個数: 24

約数和(自身を含む): 150892560

約数和(自身を除く): 69291284

約数列:

[1, 2, 4, 19, 38, 76, 281, 562, 1124, 3821, 5339, 7642, 10678, 15284, 21356, 72599, 145198, 290396, 1073701, 2147402, 4294804, 20400319, 40800638, 81601276]

約数ペア:

[(1, 81601276), (2, 40800638), (4, 20400319), (19, 4294804), (38, 2147402), (76, 1073701), (281, 290396), (562, 145198), (1124, 72599), (3821, 21356), (5339, 15284), (7642, 10678)]