18968650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 38122560

約数和(自身を除く): 19153910

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 190, 205, 410, 475, 487, 779, 950, 974, 1025, 1558, 2050, 2435, 3895, 4870, 7790, 9253, 12175, 18506, 19475, 19967, 24350, 38950, 39934, 46265, 92530, 99835, 199670, 231325, 379373, 462650, 499175, 758746, 998350, 1896865, 3793730, 9484325, 18968650]

約数ペア:

[(1, 18968650), (2, 9484325), (5, 3793730), (10, 1896865), (19, 998350), (25, 758746), (38, 499175), (41, 462650), (50, 379373), (82, 231325), (95, 199670), (190, 99835), (205, 92530), (410, 46265), (475, 39934), (487, 38950), (779, 24350), (950, 19967), (974, 19475), (1025, 18506), (1558, 12175), (2050, 9253), (2435, 7790), (3895, 4870)]