20048420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7537}}^1$

素因数の和:7572

約数の個数: 48

約数和(自身を含む): 50655360

約数和(自身を除く): 30606940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7537, 15074, 30148, 37685, 52759, 75370, 105518, 143203, 150740, 211036, 263795, 286406, 527590, 572812, 716015, 1002421, 1055180, 1432030, 2004842, 2864060, 4009684, 5012105, 10024210, 20048420]

約数ペア:

[(1, 20048420), (2, 10024210), (4, 5012105), (5, 4009684), (7, 2864060), (10, 2004842), (14, 1432030), (19, 1055180), (20, 1002421), (28, 716015), (35, 572812), (38, 527590), (70, 286406), (76, 263795), (95, 211036), (133, 150740), (140, 143203), (190, 105518), (266, 75370), (380, 52759), (532, 37685), (665, 30148), (1330, 15074), (2660, 7537)]