28722760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2251}}^1$

素因数の和:2302

約数の個数: 64

約数和(自身を含む): 72964800

約数和(自身を除く): 44242040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 2251, 2552, 3190, 4502, 6380, 9004, 11255, 12760, 18008, 22510, 24761, 45020, 49522, 65279, 90040, 99044, 123805, 130558, 198088, 247610, 261116, 326395, 495220, 522232, 652790, 718069, 990440, 1305580, 1436138, 2611160, 2872276, 3590345, 5744552, 7180690, 14361380, 28722760]

約数ペア:

[(1, 28722760), (2, 14361380), (4, 7180690), (5, 5744552), (8, 3590345), (10, 2872276), (11, 2611160), (20, 1436138), (22, 1305580), (29, 990440), (40, 718069), (44, 652790), (55, 522232), (58, 495220), (88, 326395), (110, 261116), (116, 247610), (145, 198088), (220, 130558), (232, 123805), (290, 99044), (319, 90040), (440, 65279), (580, 49522), (638, 45020), (1160, 24761), (1276, 22510), (1595, 18008), (2251, 12760), (2552, 11255), (3190, 9004), (4502, 6380)]