28159760

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2687}}^1$

素因数の和:2831

約数の個数: 40

約数和(自身を含む): 65995776

約数和(自身を除く): 37836016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 2687, 5240, 5374, 10480, 10748, 13435, 21496, 26870, 42992, 53740, 107480, 214960, 351997, 703994, 1407988, 1759985, 2815976, 3519970, 5631952, 7039940, 14079880, 28159760]

約数ペア:

[(1, 28159760), (2, 14079880), (4, 7039940), (5, 5631952), (8, 3519970), (10, 2815976), (16, 1759985), (20, 1407988), (40, 703994), (80, 351997), (131, 214960), (262, 107480), (524, 53740), (655, 42992), (1048, 26870), (1310, 21496), (2096, 13435), (2620, 10748), (2687, 10480), (5240, 5374)]