51855760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{487}}^1$

素因数の和:533

約数の個数: 80

約数和(自身を含む): 132884352

約数和(自身を除く): 81028592

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 487, 605, 880, 968, 974, 1210, 1331, 1936, 1948, 2420, 2435, 2662, 3896, 4840, 4870, 5324, 5357, 6655, 7792, 9680, 9740, 10648, 10714, 13310, 19480, 21296, 21428, 26620, 26785, 38960, 42856, 53240, 53570, 58927, 85712, 106480, 107140, 117854, 214280, 235708, 294635, 428560, 471416, 589270, 648197, 942832, 1178540, 1296394, 2357080, 2592788, 3240985, 4714160, 5185576, 6481970, 10371152, 12963940, 25927880, 51855760]

約数ペア:

[(1, 51855760), (2, 25927880), (4, 12963940), (5, 10371152), (8, 6481970), (10, 5185576), (11, 4714160), (16, 3240985), (20, 2592788), (22, 2357080), (40, 1296394), (44, 1178540), (55, 942832), (80, 648197), (88, 589270), (110, 471416), (121, 428560), (176, 294635), (220, 235708), (242, 214280), (440, 117854), (484, 107140), (487, 106480), (605, 85712), (880, 58927), (968, 53570), (974, 53240), (1210, 42856), (1331, 38960), (1936, 26785), (1948, 26620), (2420, 21428), (2435, 21296), (2662, 19480), (3896, 13310), (4840, 10714), (4870, 10648), (5324, 9740), (5357, 9680), (6655, 7792)]