81263549008

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{83261833}}^1$

素因数の和:83261902

約数の個数: 20

約数和(自身を含む): 160029244948

約数和(自身を除く): 78765695940

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 83261833, 166523666, 333047332, 666094664, 1332189328, 5078971813, 10157943626, 20315887252, 40631774504, 81263549008]

約数ペア:

[(1, 81263549008), (2, 40631774504), (4, 20315887252), (8, 10157943626), (16, 5078971813), (61, 1332189328), (122, 666094664), (244, 333047332), (488, 166523666), (976, 83261833)]