25131760

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{991}}^1$

素因数の和:1321

約数の個数: 40

約数和(自身を含む): 58674816

約数和(自身を除く): 33543056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 991, 1268, 1585, 1982, 2536, 3170, 3964, 4955, 5072, 6340, 7928, 9910, 12680, 15856, 19820, 25360, 39640, 79280, 314147, 628294, 1256588, 1570735, 2513176, 3141470, 5026352, 6282940, 12565880, 25131760]

約数ペア:

[(1, 25131760), (2, 12565880), (4, 6282940), (5, 5026352), (8, 3141470), (10, 2513176), (16, 1570735), (20, 1256588), (40, 628294), (80, 314147), (317, 79280), (634, 39640), (991, 25360), (1268, 19820), (1585, 15856), (1982, 12680), (2536, 9910), (3170, 7928), (3964, 6340), (4955, 5072)]