168652520

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{4229}}^1$

素因数の和:5237

約数の個数: 32

約数和(自身を含む): 379938600

約数和(自身を除く): 211286080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4229, 4985, 7976, 8458, 9970, 16916, 19940, 21145, 33832, 39880, 42290, 84580, 169160, 4216313, 8432626, 16865252, 21081565, 33730504, 42163130, 84326260, 168652520]

約数ペア:

[(1, 168652520), (2, 84326260), (4, 42163130), (5, 33730504), (8, 21081565), (10, 16865252), (20, 8432626), (40, 4216313), (997, 169160), (1994, 84580), (3988, 42290), (4229, 39880), (4985, 33832), (7976, 21145), (8458, 19940), (9970, 16916)]