81273790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{48091}}^1$

素因数の和:48124

約数の個数: 24

約数和(自身を含む): 158415048

約数和(自身を除く): 77141258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 48091, 96182, 240455, 480910, 625183, 1250366, 3125915, 6251830, 8127379, 16254758, 40636895, 81273790]

約数ペア:

[(1, 81273790), (2, 40636895), (5, 16254758), (10, 8127379), (13, 6251830), (26, 3125915), (65, 1250366), (130, 625183), (169, 480910), (338, 240455), (845, 96182), (1690, 48091)]