20460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:54

約数の個数: 48

約数和(自身を含む): 64512

約数和(自身を除く): 44052

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 31, 33, 44, 55, 60, 62, 66, 93, 110, 124, 132, 155, 165, 186, 220, 310, 330, 341, 372, 465, 620, 660, 682, 930, 1023, 1364, 1705, 1860, 2046, 3410, 4092, 5115, 6820, 10230, 20460]

約数ペア:

[(1, 20460), (2, 10230), (3, 6820), (4, 5115), (5, 4092), (6, 3410), (10, 2046), (11, 1860), (12, 1705), (15, 1364), (20, 1023), (22, 930), (30, 682), (31, 660), (33, 620), (44, 465), (55, 372), (60, 341), (62, 330), (66, 310), (93, 220), (110, 186), (124, 165), (132, 155)]