51392440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 126904320

約数和(自身を除く): 75511880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 271, 431, 440, 542, 862, 1084, 1355, 1724, 2155, 2168, 2710, 2981, 3448, 4310, 4741, 5420, 5962, 8620, 9482, 10840, 11924, 14905, 17240, 18964, 23705, 23848, 29810, 37928, 47410, 59620, 94820, 116801, 119240, 189640, 233602, 467204, 584005, 934408, 1168010, 1284811, 2336020, 2569622, 4672040, 5139244, 6424055, 10278488, 12848110, 25696220, 51392440]

約数ペア:

[(1, 51392440), (2, 25696220), (4, 12848110), (5, 10278488), (8, 6424055), (10, 5139244), (11, 4672040), (20, 2569622), (22, 2336020), (40, 1284811), (44, 1168010), (55, 934408), (88, 584005), (110, 467204), (220, 233602), (271, 189640), (431, 119240), (440, 116801), (542, 94820), (862, 59620), (1084, 47410), (1355, 37928), (1724, 29810), (2155, 23848), (2168, 23705), (2710, 18964), (2981, 17240), (3448, 14905), (4310, 11924), (4741, 10840), (5420, 9482), (5962, 8620)]