20235218948

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{4969}}^1$

素因数の和:5329

約数の個数: 72

約数和(自身を含む): 41881593600

約数和(自身を除く): 21646374652

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 263, 316, 526, 553, 1052, 1106, 1841, 2212, 3682, 3871, 4969, 7364, 7742, 9938, 12887, 15484, 19876, 20777, 25774, 34783, 41554, 51548, 69566, 83108, 139132, 145439, 243481, 290878, 392551, 486962, 581756, 785102, 973924, 1018073, 1306847, 1570204, 2036146, 2613694, 2747857, 4072292, 5227388, 5495714, 9147929, 10991428, 18295858, 19234999, 36591716, 38469998, 64035503, 76939996, 103240913, 128071006, 206481826, 256142012, 412963652, 722686391, 1445372782, 2890745564, 5058804737, 10117609474, 20235218948]

約数ペア:

[(1, 20235218948), (2, 10117609474), (4, 5058804737), (7, 2890745564), (14, 1445372782), (28, 722686391), (49, 412963652), (79, 256142012), (98, 206481826), (158, 128071006), (196, 103240913), (263, 76939996), (316, 64035503), (526, 38469998), (553, 36591716), (1052, 19234999), (1106, 18295858), (1841, 10991428), (2212, 9147929), (3682, 5495714), (3871, 5227388), (4969, 4072292), (7364, 2747857), (7742, 2613694), (9938, 2036146), (12887, 1570204), (15484, 1306847), (19876, 1018073), (20777, 973924), (25774, 785102), (34783, 581756), (41554, 486962), (51548, 392551), (69566, 290878), (83108, 243481), (139132, 145439)]