156765431825

素因数分解:

$5^2\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1\times {\mathrm{569}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 197544521520

約数和(自身を除く): 40779089695

約数列:

[1, 5, 25, 137, 257, 313, 569, 685, 1285, 1565, 2845, 3425, 6425, 7825, 14225, 35209, 42881, 77953, 80441, 146233, 176045, 178097, 214405, 389765, 402205, 731165, 880225, 890485, 1072025, 1948825, 2011025, 3655825, 4452425, 11020417, 20033921, 24399289, 45770929, 55102085, 100169605, 121996445, 228854645, 275510425, 500848025, 609982225, 1144273225, 6270617273, 31353086365, 156765431825]

約数ペア:

[(1, 156765431825), (5, 31353086365), (25, 6270617273), (137, 1144273225), (257, 609982225), (313, 500848025), (569, 275510425), (685, 228854645), (1285, 121996445), (1565, 100169605), (2845, 55102085), (3425, 45770929), (6425, 24399289), (7825, 20033921), (14225, 11020417), (35209, 4452425), (42881, 3655825), (77953, 2011025), (80441, 1948825), (146233, 1072025), (176045, 890485), (178097, 880225), (214405, 731165), (389765, 402205)]