81007216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163321}}^1$

素因数の和:163360

約数の個数: 20

約数和(自身を含む): 162015424

約数和(自身を除く): 81008208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 163321, 326642, 653284, 1306568, 2613136, 5062951, 10125902, 20251804, 40503608, 81007216]

約数ペア:

[(1, 81007216), (2, 40503608), (4, 20251804), (8, 10125902), (16, 5062951), (31, 2613136), (62, 1306568), (124, 653284), (248, 326642), (496, 163321)]