19843790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1568

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 18310450

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 1349, 1471, 2698, 2942, 6745, 7355, 13490, 14710, 27949, 55898, 104441, 139745, 208882, 279490, 522205, 1044410, 1984379, 3968758, 9921895, 19843790]

約数ペア:

[(1, 19843790), (2, 9921895), (5, 3968758), (10, 1984379), (19, 1044410), (38, 522205), (71, 279490), (95, 208882), (142, 139745), (190, 104441), (355, 55898), (710, 27949), (1349, 14710), (1471, 13490), (2698, 7355), (2942, 6745)]