15618160

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1201

約数の個数: 40

約数和(自身を含む): 36533376

約数和(自身を除く): 20915216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 991, 1576, 1970, 1982, 3152, 3940, 3964, 4955, 7880, 7928, 9910, 15760, 15856, 19820, 39640, 79280, 195227, 390454, 780908, 976135, 1561816, 1952270, 3123632, 3904540, 7809080, 15618160]

約数ペア:

[(1, 15618160), (2, 7809080), (4, 3904540), (5, 3123632), (8, 1952270), (10, 1561816), (16, 976135), (20, 780908), (40, 390454), (80, 195227), (197, 79280), (394, 39640), (788, 19820), (985, 15856), (991, 15760), (1576, 9910), (1970, 7928), (1982, 7880), (3152, 4955), (3940, 3964)]