20012133080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{520607}}^1$

素因数の和:520680

約数の個数: 48

約数和(自身を含む): 46526736960

約数和(自身を除く): 26514603880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 19220, 38440, 520607, 1041214, 2082428, 2603035, 4164856, 5206070, 10412140, 16138817, 20824280, 32277634, 64555268, 80694085, 129110536, 161388170, 322776340, 500303327, 645552680, 1000606654, 2001213308, 2501516635, 4002426616, 5003033270, 10006066540, 20012133080]

約数ペア:

[(1, 20012133080), (2, 10006066540), (4, 5003033270), (5, 4002426616), (8, 2501516635), (10, 2001213308), (20, 1000606654), (31, 645552680), (40, 500303327), (62, 322776340), (124, 161388170), (155, 129110536), (248, 80694085), (310, 64555268), (620, 32277634), (961, 20824280), (1240, 16138817), (1922, 10412140), (3844, 5206070), (4805, 4164856), (7688, 2603035), (9610, 2082428), (19220, 1041214), (38440, 520607)]