67821580

素因数分解:

$2^2\times 5^1\times {\mathrm{1693}}^1\times {\mathrm{2003}}^1$

素因数の和:3705

約数の個数: 24

約数和(自身を含む): 142580592

約数和(自身を除く): 74759012

約数列:

[1, 2, 4, 5, 10, 20, 1693, 2003, 3386, 4006, 6772, 8012, 8465, 10015, 16930, 20030, 33860, 40060, 3391079, 6782158, 13564316, 16955395, 33910790, 67821580]

約数ペア:

[(1, 67821580), (2, 33910790), (4, 16955395), (5, 13564316), (10, 6782158), (20, 3391079), (1693, 40060), (2003, 33860), (3386, 20030), (4006, 16930), (6772, 10015), (8012, 8465)]