39708880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7075

約数の個数: 40

約数和(自身を含む): 93636864

約数和(自身を除く): 53927984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 6991, 13982, 27964, 34955, 55928, 69910, 111856, 139820, 279640, 496361, 559280, 992722, 1985444, 2481805, 3970888, 4963610, 7941776, 9927220, 19854440, 39708880]

約数ペア:

[(1, 39708880), (2, 19854440), (4, 9927220), (5, 7941776), (8, 4963610), (10, 3970888), (16, 2481805), (20, 1985444), (40, 992722), (71, 559280), (80, 496361), (142, 279640), (284, 139820), (355, 111856), (568, 69910), (710, 55928), (1136, 34955), (1420, 27964), (2840, 13982), (5680, 6991)]