55721240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81943}}^1$

素因数の和:81971

約数の個数: 32

約数和(自身を含む): 132749280

約数和(自身を除く): 77028040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 81943, 163886, 327772, 409715, 655544, 819430, 1393031, 1638860, 2786062, 3277720, 5572124, 6965155, 11144248, 13930310, 27860620, 55721240]

約数ペア:

[(1, 55721240), (2, 27860620), (4, 13930310), (5, 11144248), (8, 6965155), (10, 5572124), (17, 3277720), (20, 2786062), (34, 1638860), (40, 1393031), (68, 819430), (85, 655544), (136, 409715), (170, 327772), (340, 163886), (680, 81943)]