18818580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28513}}^1$

素因数の和:28536

約数の個数: 48

約数和(自身を含む): 57484224

約数和(自身を除く): 38665644

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 28513, 57026, 85539, 114052, 142565, 171078, 285130, 313643, 342156, 427695, 570260, 627286, 855390, 940929, 1254572, 1568215, 1710780, 1881858, 3136430, 3763716, 4704645, 6272860, 9409290, 18818580]

約数ペア:

[(1, 18818580), (2, 9409290), (3, 6272860), (4, 4704645), (5, 3763716), (6, 3136430), (10, 1881858), (11, 1710780), (12, 1568215), (15, 1254572), (20, 940929), (22, 855390), (30, 627286), (33, 570260), (44, 427695), (55, 342156), (60, 313643), (66, 285130), (110, 171078), (132, 142565), (165, 114052), (220, 85539), (330, 57026), (660, 28513)]