78400175

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 125858016

約数和(自身を除く): 47457841

約数列:

[1, 5, 7, 17, 19, 25, 35, 73, 85, 95, 119, 133, 175, 323, 361, 365, 425, 475, 511, 595, 665, 1241, 1387, 1615, 1805, 1825, 2261, 2527, 2555, 2975, 3325, 6137, 6205, 6935, 8075, 8687, 9025, 9709, 11305, 12635, 12775, 23579, 26353, 30685, 31025, 34675, 42959, 43435, 48545, 56525, 63175, 117895, 131765, 153425, 165053, 184471, 214795, 217175, 242725, 448001, 589475, 658825, 825265, 922355, 1073975, 2240005, 3136007, 4126325, 4611775, 11200025, 15680035, 78400175]

約数ペア:

[(1, 78400175), (5, 15680035), (7, 11200025), (17, 4611775), (19, 4126325), (25, 3136007), (35, 2240005), (73, 1073975), (85, 922355), (95, 825265), (119, 658825), (133, 589475), (175, 448001), (323, 242725), (361, 217175), (365, 214795), (425, 184471), (475, 165053), (511, 153425), (595, 131765), (665, 117895), (1241, 63175), (1387, 56525), (1615, 48545), (1805, 43435), (1825, 42959), (2261, 34675), (2527, 31025), (2555, 30685), (2975, 26353), (3325, 23579), (6137, 12775), (6205, 12635), (6935, 11305), (8075, 9709), (8687, 9025)]