207939640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{40933}}^1$

素因数の和:41071

約数の個数: 32

約数和(自身を含む): 471559680

約数和(自身を除く): 263620040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 40933, 81866, 163732, 204665, 327464, 409330, 818660, 1637320, 5198491, 10396982, 20793964, 25992455, 41587928, 51984910, 103969820, 207939640]

約数ペア:

[(1, 207939640), (2, 103969820), (4, 51984910), (5, 41587928), (8, 25992455), (10, 20793964), (20, 10396982), (40, 5198491), (127, 1637320), (254, 818660), (508, 409330), (635, 327464), (1016, 204665), (1270, 163732), (2540, 81866), (5080, 40933)]