80271660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191123}}^1$

素因数の和:191142

約数の個数: 48

約数和(自身を含む): 256870656

約数和(自身を除く): 176598996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191123, 382246, 573369, 764492, 955615, 1146738, 1337861, 1911230, 2293476, 2675722, 2866845, 3822460, 4013583, 5351444, 5733690, 6689305, 8027166, 11467380, 13378610, 16054332, 20067915, 26757220, 40135830, 80271660]

約数ペア:

[(1, 80271660), (2, 40135830), (3, 26757220), (4, 20067915), (5, 16054332), (6, 13378610), (7, 11467380), (10, 8027166), (12, 6689305), (14, 5733690), (15, 5351444), (20, 4013583), (21, 3822460), (28, 2866845), (30, 2675722), (35, 2293476), (42, 1911230), (60, 1337861), (70, 1146738), (84, 955615), (105, 764492), (140, 573369), (210, 382246), (420, 191123)]