81502018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1867}}^1$

素因数の和:1978

約数の個数: 32

約数和(自身を含む): 139337856

約数和(自身を除く): 57835838

約数列:

[1, 2, 13, 23, 26, 46, 73, 146, 299, 598, 949, 1679, 1867, 1898, 3358, 3734, 21827, 24271, 42941, 43654, 48542, 85882, 136291, 272582, 558233, 1116466, 1771783, 3134693, 3543566, 6269386, 40751009, 81502018]

約数ペア:

[(1, 81502018), (2, 40751009), (13, 6269386), (23, 3543566), (26, 3134693), (46, 1771783), (73, 1116466), (146, 558233), (299, 272582), (598, 136291), (949, 85882), (1679, 48542), (1867, 43654), (1898, 42941), (3358, 24271), (3734, 21827)]