20420940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10979}}^1$

素因数の和:11022

約数の個数: 48

約数和(自身を含む): 59028480

約数和(自身を除く): 38607540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 10979, 21958, 32937, 43916, 54895, 65874, 109790, 131748, 164685, 219580, 329370, 340349, 658740, 680698, 1021047, 1361396, 1701745, 2042094, 3403490, 4084188, 5105235, 6806980, 10210470, 20420940]

約数ペア:

[(1, 20420940), (2, 10210470), (3, 6806980), (4, 5105235), (5, 4084188), (6, 3403490), (10, 2042094), (12, 1701745), (15, 1361396), (20, 1021047), (30, 680698), (31, 658740), (60, 340349), (62, 329370), (93, 219580), (124, 164685), (155, 131748), (186, 109790), (310, 65874), (372, 54895), (465, 43916), (620, 32937), (930, 21958), (1860, 10979)]