80628940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{575921}}^1$

素因数の和:575937

約数の個数: 24

約数和(自身を含む): 193509792

約数和(自身を除く): 112880852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 575921, 1151842, 2303684, 2879605, 4031447, 5759210, 8062894, 11518420, 16125788, 20157235, 40314470, 80628940]

約数ペア:

[(1, 80628940), (2, 40314470), (4, 20157235), (5, 16125788), (7, 11518420), (10, 8062894), (14, 5759210), (20, 4031447), (28, 2879605), (35, 2303684), (70, 1151842), (140, 575921)]