27870980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{829}}^1$

素因数の和:920

約数の個数: 36

約数和(自身を含む): 60063780

約数和(自身を除く): 32192800

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 829, 1658, 1681, 3316, 3362, 4145, 6724, 8290, 8405, 16580, 16810, 33620, 33989, 67978, 135956, 169945, 339890, 679780, 1393549, 2787098, 5574196, 6967745, 13935490, 27870980]

約数ペア:

[(1, 27870980), (2, 13935490), (4, 6967745), (5, 5574196), (10, 2787098), (20, 1393549), (41, 679780), (82, 339890), (164, 169945), (205, 135956), (410, 67978), (820, 33989), (829, 33620), (1658, 16810), (1681, 16580), (3316, 8405), (3362, 8290), (4145, 6724)]