51142960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:766

約数の個数: 80

約数和(自身を含む): 131375520

約数和(自身を除く): 80232560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 653, 712, 880, 890, 979, 1306, 1424, 1780, 1958, 2612, 3265, 3560, 3916, 4895, 5224, 6530, 7120, 7183, 7832, 9790, 10448, 13060, 14366, 15664, 19580, 26120, 28732, 35915, 39160, 52240, 57464, 58117, 71830, 78320, 114928, 116234, 143660, 232468, 287320, 290585, 464936, 574640, 581170, 639287, 929872, 1162340, 1278574, 2324680, 2557148, 3196435, 4649360, 5114296, 6392870, 10228592, 12785740, 25571480, 51142960]

約数ペア:

[(1, 51142960), (2, 25571480), (4, 12785740), (5, 10228592), (8, 6392870), (10, 5114296), (11, 4649360), (16, 3196435), (20, 2557148), (22, 2324680), (40, 1278574), (44, 1162340), (55, 929872), (80, 639287), (88, 581170), (89, 574640), (110, 464936), (176, 290585), (178, 287320), (220, 232468), (356, 143660), (440, 116234), (445, 114928), (653, 78320), (712, 71830), (880, 58117), (890, 57464), (979, 52240), (1306, 39160), (1424, 35915), (1780, 28732), (1958, 26120), (2612, 19580), (3265, 15664), (3560, 14366), (3916, 13060), (4895, 10448), (5224, 9790), (6530, 7832), (7120, 7183)]