42180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:68

約数の個数: 48

約数和(自身を含む): 127680

約数和(自身を除く): 85500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 370, 380, 444, 555, 570, 703, 740, 1110, 1140, 1406, 2109, 2220, 2812, 3515, 4218, 7030, 8436, 10545, 14060, 21090, 42180]

約数ペア:

[(1, 42180), (2, 21090), (3, 14060), (4, 10545), (5, 8436), (6, 7030), (10, 4218), (12, 3515), (15, 2812), (19, 2220), (20, 2109), (30, 1406), (37, 1140), (38, 1110), (57, 740), (60, 703), (74, 570), (76, 555), (95, 444), (111, 380), (114, 370), (148, 285), (185, 228), (190, 222)]