81880178

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{7541}}^1$

素因数の和:7693

約数の個数: 16

約数和(自身を含む): 126253080

約数和(自身を除く): 44372902

約数列:

[1, 2, 61, 89, 122, 178, 5429, 7541, 10858, 15082, 460001, 671149, 920002, 1342298, 40940089, 81880178]

約数ペア:

[(1, 81880178), (2, 40940089), (61, 1342298), (89, 920002), (122, 671149), (178, 460001), (5429, 15082), (7541, 10858)]