18292520

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1997}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 41358600

約数和(自身を除く): 23066080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 1997, 2290, 3994, 4580, 7988, 9160, 9985, 15976, 19970, 39940, 79880, 457313, 914626, 1829252, 2286565, 3658504, 4573130, 9146260, 18292520]

約数ペア:

[(1, 18292520), (2, 9146260), (4, 4573130), (5, 3658504), (8, 2286565), (10, 1829252), (20, 914626), (40, 457313), (229, 79880), (458, 39940), (916, 19970), (1145, 15976), (1832, 9985), (1997, 9160), (2290, 7988), (3994, 4580)]