20736015280

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1\times {\mathrm{13259}}^1$

素因数の和:13558

約数の個数: 80

約数和(自身を含む): 48922716960

約数和(自身を除く): 28186701680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 173, 226, 346, 452, 565, 692, 865, 904, 1130, 1384, 1730, 1808, 2260, 2768, 3460, 4520, 6920, 9040, 13259, 13840, 19549, 26518, 39098, 53036, 66295, 78196, 97745, 106072, 132590, 156392, 195490, 212144, 265180, 312784, 390980, 530360, 781960, 1060720, 1498267, 1563920, 2293807, 2996534, 4587614, 5993068, 7491335, 9175228, 11469035, 11986136, 14982670, 18350456, 22938070, 23972272, 29965340, 36700912, 45876140, 59930680, 91752280, 119861360, 183504560, 259200191, 518400382, 1036800764, 1296000955, 2073601528, 2592001910, 4147203056, 5184003820, 10368007640, 20736015280]

約数ペア:

[(1, 20736015280), (2, 10368007640), (4, 5184003820), (5, 4147203056), (8, 2592001910), (10, 2073601528), (16, 1296000955), (20, 1036800764), (40, 518400382), (80, 259200191), (113, 183504560), (173, 119861360), (226, 91752280), (346, 59930680), (452, 45876140), (565, 36700912), (692, 29965340), (865, 23972272), (904, 22938070), (1130, 18350456), (1384, 14982670), (1730, 11986136), (1808, 11469035), (2260, 9175228), (2768, 7491335), (3460, 5993068), (4520, 4587614), (6920, 2996534), (9040, 2293807), (13259, 1563920), (13840, 1498267), (19549, 1060720), (26518, 781960), (39098, 530360), (53036, 390980), (66295, 312784), (78196, 265180), (97745, 212144), (106072, 195490), (132590, 156392)]