20687564856

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{443}}^1\times {\mathrm{1193}}^1$

素因数の和:1885

約数の個数: 128

約数和(自身を含む): 59544875520

約数和(自身を除く): 38857310664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 233, 443, 466, 699, 886, 932, 1193, 1329, 1398, 1631, 1772, 1864, 2386, 2658, 2796, 3101, 3262, 3544, 3579, 4772, 4893, 5316, 5592, 6202, 6524, 7158, 8351, 9303, 9544, 9786, 10632, 12404, 13048, 14316, 16702, 18606, 19572, 24808, 25053, 28632, 33404, 37212, 39144, 50106, 66808, 74424, 100212, 103219, 200424, 206438, 277969, 309657, 412876, 528499, 555938, 619314, 722533, 825752, 833907, 1056998, 1111876, 1238628, 1445066, 1585497, 1667814, 1945783, 2113996, 2167599, 2223752, 2477256, 2890132, 3170994, 3335628, 3699493, 3891566, 4227992, 4335198, 5780264, 5837349, 6341988, 6671256, 7398986, 7783132, 8670396, 11098479, 11674698, 12683976, 14797972, 15566264, 17340792, 22196958, 23349396, 29595944, 44393916, 46698792, 88787832, 123140267, 246280534, 369420801, 492561068, 738841602, 861981869, 985122136, 1477683204, 1723963738, 2585945607, 2955366408, 3447927476, 5171891214, 6895854952, 10343782428, 20687564856]

約数ペア:

[(1, 20687564856), (2, 10343782428), (3, 6895854952), (4, 5171891214), (6, 3447927476), (7, 2955366408), (8, 2585945607), (12, 1723963738), (14, 1477683204), (21, 985122136), (24, 861981869), (28, 738841602), (42, 492561068), (56, 369420801), (84, 246280534), (168, 123140267), (233, 88787832), (443, 46698792), (466, 44393916), (699, 29595944), (886, 23349396), (932, 22196958), (1193, 17340792), (1329, 15566264), (1398, 14797972), (1631, 12683976), (1772, 11674698), (1864, 11098479), (2386, 8670396), (2658, 7783132), (2796, 7398986), (3101, 6671256), (3262, 6341988), (3544, 5837349), (3579, 5780264), (4772, 4335198), (4893, 4227992), (5316, 3891566), (5592, 3699493), (6202, 3335628), (6524, 3170994), (7158, 2890132), (8351, 2477256), (9303, 2223752), (9544, 2167599), (9786, 2113996), (10632, 1945783), (12404, 1667814), (13048, 1585497), (14316, 1445066), (16702, 1238628), (18606, 1111876), (19572, 1056998), (24808, 833907), (25053, 825752), (28632, 722533), (33404, 619314), (37212, 555938), (39144, 528499), (50106, 412876), (66808, 309657), (74424, 277969), (100212, 206438), (103219, 200424)]