9212920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1657}}^1$

素因数の和:1807

約数の個数: 32

約数和(自身を含む): 20890800

約数和(自身を除く): 11677880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1657, 2780, 3314, 5560, 6628, 8285, 13256, 16570, 33140, 66280, 230323, 460646, 921292, 1151615, 1842584, 2303230, 4606460, 9212920]

約数ペア:

[(1, 9212920), (2, 4606460), (4, 2303230), (5, 1842584), (8, 1151615), (10, 921292), (20, 460646), (40, 230323), (139, 66280), (278, 33140), (556, 16570), (695, 13256), (1112, 8285), (1390, 6628), (1657, 5560), (2780, 3314)]