220443880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{134417}}^1$

素因数の和:134469

約数の個数: 32

約数和(自身を含む): 508100040

約数和(自身を除く): 287656160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 134417, 268834, 537668, 672085, 1075336, 1344170, 2688340, 5376680, 5511097, 11022194, 22044388, 27555485, 44088776, 55110970, 110221940, 220443880]

約数ペア:

[(1, 220443880), (2, 110221940), (4, 55110970), (5, 44088776), (8, 27555485), (10, 22044388), (20, 11022194), (40, 5511097), (41, 5376680), (82, 2688340), (164, 1344170), (205, 1075336), (328, 672085), (410, 537668), (820, 268834), (1640, 134417)]