22728440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{81173}}^1$

素因数の和:81191

約数の個数: 32

約数和(自身を含む): 58445280

約数和(自身を除く): 35716840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 81173, 162346, 324692, 405865, 568211, 649384, 811730, 1136422, 1623460, 2272844, 2841055, 3246920, 4545688, 5682110, 11364220, 22728440]

約数ペア:

[(1, 22728440), (2, 11364220), (4, 5682110), (5, 4545688), (7, 3246920), (8, 2841055), (10, 2272844), (14, 1623460), (20, 1136422), (28, 811730), (35, 649384), (40, 568211), (56, 405865), (70, 324692), (140, 162346), (280, 81173)]