51739120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9109}}^1$

素因数の和:9193

約数の個数: 40

約数和(自身を含む): 122001120

約数和(自身を除く): 70262000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 9109, 18218, 36436, 45545, 72872, 91090, 145744, 182180, 364360, 646739, 728720, 1293478, 2586956, 3233695, 5173912, 6467390, 10347824, 12934780, 25869560, 51739120]

約数ペア:

[(1, 51739120), (2, 25869560), (4, 12934780), (5, 10347824), (8, 6467390), (10, 5173912), (16, 3233695), (20, 2586956), (40, 1293478), (71, 728720), (80, 646739), (142, 364360), (284, 182180), (355, 145744), (568, 91090), (710, 72872), (1136, 45545), (1420, 36436), (2840, 18218), (5680, 9109)]