20345490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20551}}^1$

素因数の和:20575

約数の個数: 48

約数和(自身を含む): 57710016

約数和(自身を除く): 37364526

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20551, 41102, 61653, 102755, 123306, 184959, 205510, 226061, 308265, 369918, 452122, 616530, 678183, 924795, 1130305, 1356366, 1849590, 2034549, 2260610, 3390915, 4069098, 6781830, 10172745, 20345490]

約数ペア:

[(1, 20345490), (2, 10172745), (3, 6781830), (5, 4069098), (6, 3390915), (9, 2260610), (10, 2034549), (11, 1849590), (15, 1356366), (18, 1130305), (22, 924795), (30, 678183), (33, 616530), (45, 452122), (55, 369918), (66, 308265), (90, 226061), (99, 205510), (110, 184959), (165, 123306), (198, 102755), (330, 61653), (495, 41102), (990, 20551)]