20799850

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 40497408

約数和(自身を除く): 19697558

約数列:

[1, 2, 5, 10, 25, 47, 50, 53, 94, 106, 167, 235, 265, 334, 470, 530, 835, 1175, 1325, 1670, 2350, 2491, 2650, 4175, 4982, 7849, 8350, 8851, 12455, 15698, 17702, 24910, 39245, 44255, 62275, 78490, 88510, 124550, 196225, 221275, 392450, 415997, 442550, 831994, 2079985, 4159970, 10399925, 20799850]

約数ペア:

[(1, 20799850), (2, 10399925), (5, 4159970), (10, 2079985), (25, 831994), (47, 442550), (50, 415997), (53, 392450), (94, 221275), (106, 196225), (167, 124550), (235, 88510), (265, 78490), (334, 62275), (470, 44255), (530, 39245), (835, 24910), (1175, 17702), (1325, 15698), (1670, 12455), (2350, 8851), (2491, 8350), (2650, 7849), (4175, 4982)]