20057515555

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1\times {\mathrm{1831}}^1$

素因数の和:2660

約数の個数: 64

約数和(自身を含む): 30876088320

約数和(自身を除く): 10818572765

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 769, 1295, 1831, 2035, 2849, 3845, 5383, 8459, 9155, 12817, 14245, 20141, 26915, 28453, 42295, 59213, 64085, 67747, 100705, 140987, 142265, 199171, 296065, 312983, 338735, 474229, 704935, 745217, 995855, 1408039, 1564915, 2190881, 2371145, 3726085, 5216519, 7040195, 9856273, 10954405, 15488429, 26082595, 49281365, 52097443, 77442145, 108419003, 260487215, 364682101, 542095015, 573071873, 1823410505, 2865359365, 4011503111, 20057515555]

約数ペア:

[(1, 20057515555), (5, 4011503111), (7, 2865359365), (11, 1823410505), (35, 573071873), (37, 542095015), (55, 364682101), (77, 260487215), (185, 108419003), (259, 77442145), (385, 52097443), (407, 49281365), (769, 26082595), (1295, 15488429), (1831, 10954405), (2035, 9856273), (2849, 7040195), (3845, 5216519), (5383, 3726085), (8459, 2371145), (9155, 2190881), (12817, 1564915), (14245, 1408039), (20141, 995855), (26915, 745217), (28453, 704935), (42295, 474229), (59213, 338735), (64085, 312983), (67747, 296065), (100705, 199171), (140987, 142265)]