28380780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17519}}^1$

素因数の和:17540

約数の個数: 60

約数和(自身を含む): 89036640

約数和(自身を除く): 60655860

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, 17519, 35038, 52557, 70076, 87595, 105114, 157671, 175190, 210228, 262785, 315342, 350380, 473013, 525570, 630684, 788355, 946026, 1051140, 1419039, 1576710, 1892052, 2365065, 2838078, 3153420, 4730130, 5676156, 7095195, 9460260, 14190390, 28380780]

約数ペア:

[(1, 28380780), (2, 14190390), (3, 9460260), (4, 7095195), (5, 5676156), (6, 4730130), (9, 3153420), (10, 2838078), (12, 2365065), (15, 1892052), (18, 1576710), (20, 1419039), (27, 1051140), (30, 946026), (36, 788355), (45, 630684), (54, 525570), (60, 473013), (81, 350380), (90, 315342), (108, 262785), (135, 210228), (162, 175190), (180, 157671), (270, 105114), (324, 87595), (405, 70076), (540, 52557), (810, 35038), (1620, 17519)]