18072560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1867}}^1$

素因数の和:1902

約数の個数: 60

約数和(自身を含む): 46210584

約数和(自身を除く): 28138024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1867, 1936, 2420, 3734, 4840, 7468, 9335, 9680, 14936, 18670, 20537, 29872, 37340, 41074, 74680, 82148, 102685, 149360, 164296, 205370, 225907, 328592, 410740, 451814, 821480, 903628, 1129535, 1642960, 1807256, 2259070, 3614512, 4518140, 9036280, 18072560]

約数ペア:

[(1, 18072560), (2, 9036280), (4, 4518140), (5, 3614512), (8, 2259070), (10, 1807256), (11, 1642960), (16, 1129535), (20, 903628), (22, 821480), (40, 451814), (44, 410740), (55, 328592), (80, 225907), (88, 205370), (110, 164296), (121, 149360), (176, 102685), (220, 82148), (242, 74680), (440, 41074), (484, 37340), (605, 29872), (880, 20537), (968, 18670), (1210, 14936), (1867, 9680), (1936, 9335), (2420, 7468), (3734, 4840)]