18208020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{17851}}^1$

素因数の和:17880

約数の個数: 48

約数和(自身を含む): 53984448

約数和(自身を除く): 35776428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 17851, 35702, 53553, 71404, 89255, 107106, 178510, 214212, 267765, 303467, 357020, 535530, 606934, 910401, 1071060, 1213868, 1517335, 1820802, 3034670, 3641604, 4552005, 6069340, 9104010, 18208020]

約数ペア:

[(1, 18208020), (2, 9104010), (3, 6069340), (4, 4552005), (5, 3641604), (6, 3034670), (10, 1820802), (12, 1517335), (15, 1213868), (17, 1071060), (20, 910401), (30, 606934), (34, 535530), (51, 357020), (60, 303467), (68, 267765), (85, 214212), (102, 178510), (170, 107106), (204, 89255), (255, 71404), (340, 53553), (510, 35702), (1020, 17851)]