385478015

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^2$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 517566456

約数和(自身を除く): 132088441

約数列:

[1, 5, 13, 43, 65, 103, 169, 215, 515, 559, 845, 1339, 2795, 4429, 6695, 7267, 10609, 17407, 22145, 36335, 53045, 57577, 87035, 137917, 287885, 456187, 689585, 748501, 1792921, 2280935, 3742505, 5930431, 8964605, 29652155, 77095603, 385478015]

約数ペア:

[(1, 385478015), (5, 77095603), (13, 29652155), (43, 8964605), (65, 5930431), (103, 3742505), (169, 2280935), (215, 1792921), (515, 748501), (559, 689585), (845, 456187), (1339, 287885), (2795, 137917), (4429, 87035), (6695, 57577), (7267, 53045), (10609, 36335), (17407, 22145)]