20251115785

素因数分解:

$5^1\times {\mathrm{17}}^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 27367165440

約数和(自身を除く): 7116049655

約数列:

[1, 5, 17, 23, 73, 85, 115, 289, 365, 391, 491, 1241, 1445, 1679, 1955, 2455, 4913, 6205, 6647, 8347, 8395, 11293, 21097, 24565, 28543, 33235, 35843, 41735, 56465, 105485, 112999, 141899, 142715, 179215, 191981, 358649, 485231, 564995, 609331, 709495, 824389, 959905, 1793245, 2412283, 2426155, 3046655, 3263677, 4121945, 8248927, 10358627, 12061415, 14014613, 16318385, 41244635, 51793135, 55482509, 70073065, 176096659, 238248421, 277412545, 880483295, 1191242105, 4050223157, 20251115785]

約数ペア:

[(1, 20251115785), (5, 4050223157), (17, 1191242105), (23, 880483295), (73, 277412545), (85, 238248421), (115, 176096659), (289, 70073065), (365, 55482509), (391, 51793135), (491, 41244635), (1241, 16318385), (1445, 14014613), (1679, 12061415), (1955, 10358627), (2455, 8248927), (4913, 4121945), (6205, 3263677), (6647, 3046655), (8347, 2426155), (8395, 2412283), (11293, 1793245), (21097, 959905), (24565, 824389), (28543, 709495), (33235, 609331), (35843, 564995), (41735, 485231), (56465, 358649), (105485, 191981), (112999, 179215), (141899, 142715)]