18745760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10651}}^1$

素因数の和:10677

約数の個数: 48

約数和(自身を含む): 48317472

約数和(自身を除く): 29571712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10651, 21302, 42604, 53255, 85208, 106510, 117161, 170416, 213020, 234322, 340832, 426040, 468644, 585805, 852080, 937288, 1171610, 1704160, 1874576, 2343220, 3749152, 4686440, 9372880, 18745760]

約数ペア:

[(1, 18745760), (2, 9372880), (4, 4686440), (5, 3749152), (8, 2343220), (10, 1874576), (11, 1704160), (16, 1171610), (20, 937288), (22, 852080), (32, 585805), (40, 468644), (44, 426040), (55, 340832), (80, 234322), (88, 213020), (110, 170416), (160, 117161), (176, 106510), (220, 85208), (352, 53255), (440, 42604), (880, 21302), (1760, 10651)]