18711220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5003}}^1$

素因数の和:5040

約数の個数: 48

約数和(自身を含む): 45396288

約数和(自身を除く): 26685068

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5003, 10006, 20012, 25015, 50030, 55033, 85051, 100060, 110066, 170102, 220132, 275165, 340204, 425255, 550330, 850510, 935561, 1100660, 1701020, 1871122, 3742244, 4677805, 9355610, 18711220]

約数ペア:

[(1, 18711220), (2, 9355610), (4, 4677805), (5, 3742244), (10, 1871122), (11, 1701020), (17, 1100660), (20, 935561), (22, 850510), (34, 550330), (44, 425255), (55, 340204), (68, 275165), (85, 220132), (110, 170102), (170, 110066), (187, 100060), (220, 85051), (340, 55033), (374, 50030), (748, 25015), (935, 20012), (1870, 10006), (3740, 5003)]