18722440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2542

約数の個数: 64

約数和(自身を含む): 48677760

約数和(自身を除く): 29955320

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2503, 3740, 5006, 7480, 10012, 12515, 20024, 25030, 27533, 42551, 50060, 55066, 85102, 100120, 110132, 137665, 170204, 212755, 220264, 275330, 340408, 425510, 468061, 550660, 851020, 936122, 1101320, 1702040, 1872244, 2340305, 3744488, 4680610, 9361220, 18722440]

約数ペア:

[(1, 18722440), (2, 9361220), (4, 4680610), (5, 3744488), (8, 2340305), (10, 1872244), (11, 1702040), (17, 1101320), (20, 936122), (22, 851020), (34, 550660), (40, 468061), (44, 425510), (55, 340408), (68, 275330), (85, 220264), (88, 212755), (110, 170204), (136, 137665), (170, 110132), (187, 100120), (220, 85102), (340, 55066), (374, 50060), (440, 42551), (680, 27533), (748, 25030), (935, 20024), (1496, 12515), (1870, 10012), (2503, 7480), (3740, 5006)]