20147315

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 6809485

約数列:

[1, 5, 19, 29, 71, 95, 103, 145, 355, 515, 551, 1349, 1957, 2059, 2755, 2987, 6745, 7313, 9785, 10295, 14935, 36565, 39121, 56753, 138947, 195605, 212077, 283765, 694735, 1060385, 4029463, 20147315]

約数ペア:

[(1, 20147315), (5, 4029463), (19, 1060385), (29, 694735), (71, 283765), (95, 212077), (103, 195605), (145, 138947), (355, 56753), (515, 39121), (551, 36565), (1349, 14935), (1957, 10295), (2059, 9785), (2755, 7313), (2987, 6745)]