520011380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{195493}}^1$

素因数の和:195528

約数の個数: 48

約数和(自身を含む): 1313719680

約数和(自身を除く): 793708300

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, 195493, 390986, 781972, 977465, 1368451, 1954930, 2736902, 3714367, 3909860, 5473804, 6842255, 7428734, 13684510, 14857468, 18571835, 26000569, 27369020, 37143670, 52001138, 74287340, 104002276, 130002845, 260005690, 520011380]

約数ペア:

[(1, 520011380), (2, 260005690), (4, 130002845), (5, 104002276), (7, 74287340), (10, 52001138), (14, 37143670), (19, 27369020), (20, 26000569), (28, 18571835), (35, 14857468), (38, 13684510), (70, 7428734), (76, 6842255), (95, 5473804), (133, 3909860), (140, 3714367), (190, 2736902), (266, 1954930), (380, 1368451), (532, 977465), (665, 781972), (1330, 390986), (2660, 195493)]