20378138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 37267776

約数和(自身を除く): 16889638

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 103, 187, 206, 253, 374, 391, 506, 529, 782, 1058, 1133, 1751, 2266, 2369, 3502, 4301, 4738, 5819, 8602, 8993, 11638, 17986, 19261, 26059, 38522, 40273, 52118, 54487, 80546, 98923, 108974, 197846, 443003, 599357, 886006, 926279, 1198714, 1852558, 10189069, 20378138]

約数ペア:

[(1, 20378138), (2, 10189069), (11, 1852558), (17, 1198714), (22, 926279), (23, 886006), (34, 599357), (46, 443003), (103, 197846), (187, 108974), (206, 98923), (253, 80546), (374, 54487), (391, 52118), (506, 40273), (529, 38522), (782, 26059), (1058, 19261), (1133, 17986), (1751, 11638), (2266, 8993), (2369, 8602), (3502, 5819), (4301, 4738)]