18255880

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1993}}^1$

素因数の和:2233

約数の個数: 32

約数和(自身を含む): 41275800

約数和(自身を除く): 23019920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 1993, 2290, 3986, 4580, 7972, 9160, 9965, 15944, 19930, 39860, 79720, 456397, 912794, 1825588, 2281985, 3651176, 4563970, 9127940, 18255880]

約数ペア:

[(1, 18255880), (2, 9127940), (4, 4563970), (5, 3651176), (8, 2281985), (10, 1825588), (20, 912794), (40, 456397), (229, 79720), (458, 39860), (916, 19930), (1145, 15944), (1832, 9965), (1993, 9160), (2290, 7972), (3986, 4580)]