199894640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227153}}^1$

素因数の和:227177

約数の個数: 40

約数和(自身を含む): 507007728

約数和(自身を除く): 307113088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 227153, 454306, 908612, 1135765, 1817224, 2271530, 2498683, 3634448, 4543060, 4997366, 9086120, 9994732, 12493415, 18172240, 19989464, 24986830, 39978928, 49973660, 99947320, 199894640]

約数ペア:

[(1, 199894640), (2, 99947320), (4, 49973660), (5, 39978928), (8, 24986830), (10, 19989464), (11, 18172240), (16, 12493415), (20, 9994732), (22, 9086120), (40, 4997366), (44, 4543060), (55, 3634448), (80, 2498683), (88, 2271530), (110, 1817224), (176, 1135765), (220, 908612), (440, 454306), (880, 227153)]