18660780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11519}}^1$

素因数の和:11540

約数の個数: 60

約数和(自身を含む): 58544640

約数和(自身を除く): 39883860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 11519, 23038, 34557, 46076, 57595, 69114, 103671, 115190, 138228, 172785, 207342, 230380, 311013, 345570, 414684, 518355, 622026, 691140, 933039, 1036710, 1244052, 1555065, 1866078, 2073420, 3110130, 3732156, 4665195, 6220260, 9330390, 18660780]

約数ペア:

[(1, 18660780), (2, 9330390), (3, 6220260), (4, 4665195), (5, 3732156), (6, 3110130), (9, 2073420), (10, 1866078), (12, 1555065), (15, 1244052), (18, 1036710), (20, 933039), (27, 691140), (30, 622026), (36, 518355), (45, 414684), (54, 345570), (60, 311013), (81, 230380), (90, 207342), (108, 172785), (135, 138228), (162, 115190), (180, 103671), (270, 69114), (324, 57595), (405, 46076), (540, 34557), (810, 23038), (1620, 11519)]