129168880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22741}}^1$

素因数の和:22825

約数の個数: 40

約数和(自身を含む): 304560864

約数和(自身を除く): 175391984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 22741, 45482, 90964, 113705, 181928, 227410, 363856, 454820, 909640, 1614611, 1819280, 3229222, 6458444, 8073055, 12916888, 16146110, 25833776, 32292220, 64584440, 129168880]

約数ペア:

[(1, 129168880), (2, 64584440), (4, 32292220), (5, 25833776), (8, 16146110), (10, 12916888), (16, 8073055), (20, 6458444), (40, 3229222), (71, 1819280), (80, 1614611), (142, 909640), (284, 454820), (355, 363856), (568, 227410), (710, 181928), (1136, 113705), (1420, 90964), (2840, 45482), (5680, 22741)]