20220280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8287}}^1$

素因数の和:8359

約数の個数: 32

約数和(自身を含む): 46247040

約数和(自身を除く): 26026760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8287, 16574, 33148, 41435, 66296, 82870, 165740, 331480, 505507, 1011014, 2022028, 2527535, 4044056, 5055070, 10110140, 20220280]

約数ペア:

[(1, 20220280), (2, 10110140), (4, 5055070), (5, 4044056), (8, 2527535), (10, 2022028), (20, 1011014), (40, 505507), (61, 331480), (122, 165740), (244, 82870), (305, 66296), (488, 41435), (610, 33148), (1220, 16574), (2440, 8287)]