18494690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 16099870

約数列:

[1, 2, 5, 10, 41, 79, 82, 158, 205, 395, 410, 571, 790, 1142, 2855, 3239, 5710, 6478, 16195, 23411, 32390, 45109, 46822, 90218, 117055, 225545, 234110, 451090, 1849469, 3698938, 9247345, 18494690]

約数ペア:

[(1, 18494690), (2, 9247345), (5, 3698938), (10, 1849469), (41, 451090), (79, 234110), (82, 225545), (158, 117055), (205, 90218), (395, 46822), (410, 45109), (571, 32390), (790, 23411), (1142, 16195), (2855, 6478), (3239, 5710)]