30970220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 66769920

約数和(自身を除く): 35799700

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 137, 178, 254, 274, 356, 445, 508, 548, 635, 685, 890, 1270, 1370, 1780, 2540, 2740, 11303, 12193, 17399, 22606, 24386, 34798, 45212, 48772, 56515, 60965, 69596, 86995, 113030, 121930, 173990, 226060, 243860, 347980, 1548511, 3097022, 6194044, 7742555, 15485110, 30970220]

約数ペア:

[(1, 30970220), (2, 15485110), (4, 7742555), (5, 6194044), (10, 3097022), (20, 1548511), (89, 347980), (127, 243860), (137, 226060), (178, 173990), (254, 121930), (274, 113030), (356, 86995), (445, 69596), (508, 60965), (548, 56515), (635, 48772), (685, 45212), (890, 34798), (1270, 24386), (1370, 22606), (1780, 17399), (2540, 12193), (2740, 11303)]