22161760

素因数分解:

$2^5\times 5^1\times {\mathrm{138511}}^1$

素因数の和:138526

約数の個数: 24

約数和(自身を含む): 52357536

約数和(自身を除く): 30195776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 138511, 277022, 554044, 692555, 1108088, 1385110, 2216176, 2770220, 4432352, 5540440, 11080880, 22161760]

約数ペア:

[(1, 22161760), (2, 11080880), (4, 5540440), (5, 4432352), (8, 2770220), (10, 2216176), (16, 1385110), (20, 1108088), (32, 692555), (40, 554044), (80, 277022), (160, 138511)]