20281595

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7089925

約数列:

[1, 5, 17, 31, 43, 85, 155, 179, 215, 527, 731, 895, 1333, 2635, 3043, 3655, 5549, 6665, 7697, 15215, 22661, 27745, 38485, 94333, 113305, 130849, 238607, 471665, 654245, 1193035, 4056319, 20281595]

約数ペア:

[(1, 20281595), (5, 4056319), (17, 1193035), (31, 654245), (43, 471665), (85, 238607), (155, 130849), (179, 113305), (215, 94333), (527, 38485), (731, 27745), (895, 22661), (1333, 15215), (2635, 7697), (3043, 6665), (3655, 5549)]