118560920

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{7247}}^1$

素因数の和:7667

約数の個数: 32

約数和(自身を含む): 267451200

約数和(自身を除く): 148890280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 7247, 8180, 14494, 16360, 28988, 36235, 57976, 72470, 144940, 289880, 2964023, 5928046, 11856092, 14820115, 23712184, 29640230, 59280460, 118560920]

約数ペア:

[(1, 118560920), (2, 59280460), (4, 29640230), (5, 23712184), (8, 14820115), (10, 11856092), (20, 5928046), (40, 2964023), (409, 289880), (818, 144940), (1636, 72470), (2045, 57976), (3272, 36235), (4090, 28988), (7247, 16360), (8180, 14494)]