217568560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{541}}^1$

素因数の和:1022

約数の個数: 80

約数和(自身を含む): 554062752

約数和(自身を除く): 336494192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 457, 541, 880, 914, 1082, 1828, 2164, 2285, 2705, 3656, 4328, 4570, 5027, 5410, 5951, 7312, 8656, 9140, 10054, 10820, 11902, 18280, 20108, 21640, 23804, 25135, 29755, 36560, 40216, 43280, 47608, 50270, 59510, 80432, 95216, 100540, 119020, 201080, 238040, 247237, 402160, 476080, 494474, 988948, 1236185, 1977896, 2472370, 2719607, 3955792, 4944740, 5439214, 9889480, 10878428, 13598035, 19778960, 21756856, 27196070, 43513712, 54392140, 108784280, 217568560]

約数ペア:

[(1, 217568560), (2, 108784280), (4, 54392140), (5, 43513712), (8, 27196070), (10, 21756856), (11, 19778960), (16, 13598035), (20, 10878428), (22, 9889480), (40, 5439214), (44, 4944740), (55, 3955792), (80, 2719607), (88, 2472370), (110, 1977896), (176, 1236185), (220, 988948), (440, 494474), (457, 476080), (541, 402160), (880, 247237), (914, 238040), (1082, 201080), (1828, 119020), (2164, 100540), (2285, 95216), (2705, 80432), (3656, 59510), (4328, 50270), (4570, 47608), (5027, 43280), (5410, 40216), (5951, 36560), (7312, 29755), (8656, 25135), (9140, 23804), (10054, 21640), (10820, 20108), (11902, 18280)]