156965458675

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{137}}^1\times {\mathrm{347}}^1\times {\mathrm{457}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 209326338864

約数和(自身を除く): 52360880189

約数列:

[1, 5, 17, 25, 85, 137, 289, 347, 425, 457, 685, 1445, 1735, 2285, 2329, 3425, 5899, 7225, 7769, 8675, 11425, 11645, 29495, 38845, 39593, 47539, 58225, 62609, 100283, 132073, 147475, 158579, 194225, 197965, 237695, 313045, 501415, 660365, 792895, 808163, 989825, 1064353, 1188475, 1565225, 2507075, 2695843, 3301825, 3964475, 4040815, 5321765, 13479215, 13738771, 18094001, 20204075, 21725323, 26608825, 45829331, 67396075, 68693855, 90470005, 108626615, 229146655, 343469275, 369330491, 452350025, 543133075, 1145733275, 1846652455, 6278618347, 9233262275, 31393091735, 156965458675]

約数ペア:

[(1, 156965458675), (5, 31393091735), (17, 9233262275), (25, 6278618347), (85, 1846652455), (137, 1145733275), (289, 543133075), (347, 452350025), (425, 369330491), (457, 343469275), (685, 229146655), (1445, 108626615), (1735, 90470005), (2285, 68693855), (2329, 67396075), (3425, 45829331), (5899, 26608825), (7225, 21725323), (7769, 20204075), (8675, 18094001), (11425, 13738771), (11645, 13479215), (29495, 5321765), (38845, 4040815), (39593, 3964475), (47539, 3301825), (58225, 2695843), (62609, 2507075), (100283, 1565225), (132073, 1188475), (147475, 1064353), (158579, 989825), (194225, 808163), (197965, 792895), (237695, 660365), (313045, 501415)]