18156780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5309}}^1$

素因数の和:5343

約数の個数: 72

約数和(自身を含む): 57985200

約数和(自身を除く): 39828420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5309, 10618, 15927, 21236, 26545, 31854, 47781, 53090, 63708, 79635, 95562, 100871, 106180, 159270, 191124, 201742, 238905, 302613, 318540, 403484, 477810, 504355, 605226, 907839, 955620, 1008710, 1210452, 1513065, 1815678, 2017420, 3026130, 3631356, 4539195, 6052260, 9078390, 18156780]

約数ペア:

[(1, 18156780), (2, 9078390), (3, 6052260), (4, 4539195), (5, 3631356), (6, 3026130), (9, 2017420), (10, 1815678), (12, 1513065), (15, 1210452), (18, 1008710), (19, 955620), (20, 907839), (30, 605226), (36, 504355), (38, 477810), (45, 403484), (57, 318540), (60, 302613), (76, 238905), (90, 201742), (95, 191124), (114, 159270), (171, 106180), (180, 100871), (190, 95562), (228, 79635), (285, 63708), (342, 53090), (380, 47781), (570, 31854), (684, 26545), (855, 21236), (1140, 15927), (1710, 10618), (3420, 5309)]