17873292020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{315671}}^1$

素因数の和:315848

約数の個数: 48

約数和(自身を含む): 39774672000

約数和(自身を除く): 21901379980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2831, 2980, 5662, 11324, 14155, 28310, 56620, 315671, 631342, 1262684, 1578355, 3156710, 5997749, 6313420, 11995498, 23990996, 29988745, 47034979, 59977490, 94069958, 119954980, 188139916, 235174895, 470349790, 893664601, 940699580, 1787329202, 3574658404, 4468323005, 8936646010, 17873292020]

約数ペア:

[(1, 17873292020), (2, 8936646010), (4, 4468323005), (5, 3574658404), (10, 1787329202), (19, 940699580), (20, 893664601), (38, 470349790), (76, 235174895), (95, 188139916), (149, 119954980), (190, 94069958), (298, 59977490), (380, 47034979), (596, 29988745), (745, 23990996), (1490, 11995498), (2831, 6313420), (2980, 5997749), (5662, 3156710), (11324, 1578355), (14155, 1262684), (28310, 631342), (56620, 315671)]