81539455

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{6659}}^1$

素因数の和:6774

約数の個数: 16

約数和(自身を含む): 102297600

約数和(自身を除く): 20758145

約数列:

[1, 5, 31, 79, 155, 395, 2449, 6659, 12245, 33295, 206429, 526061, 1032145, 2630305, 16307891, 81539455]

約数ペア:

[(1, 81539455), (5, 16307891), (31, 2630305), (79, 1032145), (155, 526061), (395, 206429), (2449, 33295), (6659, 12245)]