18712620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11551}}^1$

素因数の和:11572

約数の個数: 60

約数和(自身を含む): 58707264

約数和(自身を除く): 39994644

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, 11551, 23102, 34653, 46204, 57755, 69306, 103959, 115510, 138612, 173265, 207918, 231020, 311877, 346530, 415836, 519795, 623754, 693060, 935631, 1039590, 1247508, 1559385, 1871262, 2079180, 3118770, 3742524, 4678155, 6237540, 9356310, 18712620]

約数ペア:

[(1, 18712620), (2, 9356310), (3, 6237540), (4, 4678155), (5, 3742524), (6, 3118770), (9, 2079180), (10, 1871262), (12, 1559385), (15, 1247508), (18, 1039590), (20, 935631), (27, 693060), (30, 623754), (36, 519795), (45, 415836), (54, 346530), (60, 311877), (81, 231020), (90, 207918), (108, 173265), (135, 138612), (162, 115510), (180, 103959), (270, 69306), (324, 57755), (405, 46204), (540, 34653), (810, 23102), (1620, 11551)]