81972055

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{863}}^1$

素因数の和:1047

約数の個数: 24

約数和(自身を含む): 108936576

約数和(自身を除く): 26964521

約数列:

[1, 5, 11, 55, 121, 157, 605, 785, 863, 1727, 4315, 8635, 9493, 18997, 47465, 94985, 104423, 135491, 522115, 677455, 1490401, 7452005, 16394411, 81972055]

約数ペア:

[(1, 81972055), (5, 16394411), (11, 7452005), (55, 1490401), (121, 677455), (157, 522115), (605, 135491), (785, 104423), (863, 94985), (1727, 47465), (4315, 18997), (8635, 9493)]