51238720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 112

約数和(自身を含む): 133776720

約数和(自身を除く): 82538000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 113, 130, 160, 208, 218, 226, 260, 320, 416, 436, 452, 520, 545, 565, 832, 872, 904, 1040, 1090, 1130, 1417, 1469, 1744, 1808, 2080, 2180, 2260, 2834, 2938, 3488, 3616, 4160, 4360, 4520, 5668, 5876, 6976, 7085, 7232, 7345, 8720, 9040, 11336, 11752, 12317, 14170, 14690, 17440, 18080, 22672, 23504, 24634, 28340, 29380, 34880, 36160, 45344, 47008, 49268, 56680, 58760, 61585, 90688, 94016, 98536, 113360, 117520, 123170, 160121, 197072, 226720, 235040, 246340, 320242, 394144, 453440, 470080, 492680, 640484, 788288, 800605, 985360, 1280968, 1601210, 1970720, 2561936, 3202420, 3941440, 5123872, 6404840, 10247744, 12809680, 25619360, 51238720]

約数ペア:

[(1, 51238720), (2, 25619360), (4, 12809680), (5, 10247744), (8, 6404840), (10, 5123872), (13, 3941440), (16, 3202420), (20, 2561936), (26, 1970720), (32, 1601210), (40, 1280968), (52, 985360), (64, 800605), (65, 788288), (80, 640484), (104, 492680), (109, 470080), (113, 453440), (130, 394144), (160, 320242), (208, 246340), (218, 235040), (226, 226720), (260, 197072), (320, 160121), (416, 123170), (436, 117520), (452, 113360), (520, 98536), (545, 94016), (565, 90688), (832, 61585), (872, 58760), (904, 56680), (1040, 49268), (1090, 47008), (1130, 45344), (1417, 36160), (1469, 34880), (1744, 29380), (1808, 28340), (2080, 24634), (2180, 23504), (2260, 22672), (2834, 18080), (2938, 17440), (3488, 14690), (3616, 14170), (4160, 12317), (4360, 11752), (4520, 11336), (5668, 9040), (5876, 8720), (6976, 7345), (7085, 7232)]