38402920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6907}}^1$

素因数の和:7057

約数の個数: 32

約数和(自身を含む): 87040800

約数和(自身を除く): 48637880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 6907, 13814, 27628, 34535, 55256, 69070, 138140, 276280, 960073, 1920146, 3840292, 4800365, 7680584, 9600730, 19201460, 38402920]

約数ペア:

[(1, 38402920), (2, 19201460), (4, 9600730), (5, 7680584), (8, 4800365), (10, 3840292), (20, 1920146), (40, 960073), (139, 276280), (278, 138140), (556, 69070), (695, 55256), (1112, 34535), (1390, 27628), (2780, 13814), (5560, 6907)]