1355920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1027

約数の個数: 40

約数和(自身を含む): 3341304

約数和(自身を除く): 1985384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 997, 1360, 1994, 3988, 4985, 7976, 9970, 15952, 16949, 19940, 33898, 39880, 67796, 79760, 84745, 135592, 169490, 271184, 338980, 677960, 1355920]

約数ペア:

[(1, 1355920), (2, 677960), (4, 338980), (5, 271184), (8, 169490), (10, 135592), (16, 84745), (17, 79760), (20, 67796), (34, 39880), (40, 33898), (68, 19940), (80, 16949), (85, 15952), (136, 9970), (170, 7976), (272, 4985), (340, 3988), (680, 1994), (997, 1360)]