8215280

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{997}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 19305312

約数和(自身を除く): 11090032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 997, 1030, 1648, 1994, 2060, 3988, 4120, 4985, 7976, 8240, 9970, 15952, 19940, 39880, 79760, 102691, 205382, 410764, 513455, 821528, 1026910, 1643056, 2053820, 4107640, 8215280]

約数ペア:

[(1, 8215280), (2, 4107640), (4, 2053820), (5, 1643056), (8, 1026910), (10, 821528), (16, 513455), (20, 410764), (40, 205382), (80, 102691), (103, 79760), (206, 39880), (412, 19940), (515, 15952), (824, 9970), (997, 8240), (1030, 7976), (1648, 4985), (1994, 4120), (2060, 3988)]