780420095

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 1195493376

約数和(自身を除く): 415073281

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 151, 185, 259, 307, 455, 481, 755, 1057, 1295, 1535, 1963, 2149, 2405, 3367, 3991, 5285, 5587, 9815, 10745, 11359, 13741, 16835, 19955, 27935, 27937, 39109, 46357, 56795, 68705, 72631, 79513, 139685, 147667, 195545, 231785, 324499, 363155, 397565, 508417, 602641, 738335, 1033669, 1622495, 1715209, 2542085, 3013205, 4218487, 5168345, 8576045, 12006463, 21092435, 22297717, 60032315, 111488585, 156084019, 780420095]

約数ペア:

[(1, 780420095), (5, 156084019), (7, 111488585), (13, 60032315), (35, 22297717), (37, 21092435), (65, 12006463), (91, 8576045), (151, 5168345), (185, 4218487), (259, 3013205), (307, 2542085), (455, 1715209), (481, 1622495), (755, 1033669), (1057, 738335), (1295, 602641), (1535, 508417), (1963, 397565), (2149, 363155), (2405, 324499), (3367, 231785), (3991, 195545), (5285, 147667), (5587, 139685), (9815, 79513), (10745, 72631), (11359, 68705), (13741, 56795), (16835, 46357), (19955, 39109), (27935, 27937)]