639880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 1526040

約数和(自身を除く): 886160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 941, 1882, 3764, 4705, 7528, 9410, 15997, 18820, 31994, 37640, 63988, 79985, 127976, 159970, 319940, 639880]

約数ペア:

[(1, 639880), (2, 319940), (4, 159970), (5, 127976), (8, 79985), (10, 63988), (17, 37640), (20, 31994), (34, 18820), (40, 15997), (68, 9410), (85, 7528), (136, 4705), (170, 3764), (340, 1882), (680, 941)]