20123289718

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{228409}}^1$

素因数の和:228485

約数の個数: 48

約数和(自身を含む): 37495785600

約数和(自身を除く): 17372495882

約数列:

[1, 2, 7, 14, 29, 31, 49, 58, 62, 98, 203, 217, 406, 434, 899, 1421, 1519, 1798, 2842, 3038, 6293, 12586, 44051, 88102, 228409, 456818, 1598863, 3197726, 6623861, 7080679, 11192041, 13247722, 14161358, 22384082, 46367027, 49564753, 92734054, 99129506, 205339691, 324569189, 346953271, 410679382, 649138378, 693906542, 1437377837, 2874755674, 10061644859, 20123289718]

約数ペア:

[(1, 20123289718), (2, 10061644859), (7, 2874755674), (14, 1437377837), (29, 693906542), (31, 649138378), (49, 410679382), (58, 346953271), (62, 324569189), (98, 205339691), (203, 99129506), (217, 92734054), (406, 49564753), (434, 46367027), (899, 22384082), (1421, 14161358), (1519, 13247722), (1798, 11192041), (2842, 7080679), (3038, 6623861), (6293, 3197726), (12586, 1598863), (44051, 456818), (88102, 228409)]