996820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 2395008

約数和(自身を除く): 1398188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 197, 220, 230, 253, 394, 460, 506, 788, 985, 1012, 1265, 1970, 2167, 2530, 3940, 4334, 4531, 5060, 8668, 9062, 10835, 18124, 21670, 22655, 43340, 45310, 49841, 90620, 99682, 199364, 249205, 498410, 996820]

約数ペア:

[(1, 996820), (2, 498410), (4, 249205), (5, 199364), (10, 99682), (11, 90620), (20, 49841), (22, 45310), (23, 43340), (44, 22655), (46, 21670), (55, 18124), (92, 10835), (110, 9062), (115, 8668), (197, 5060), (220, 4531), (230, 4334), (253, 3940), (394, 2530), (460, 2167), (506, 1970), (788, 1265), (985, 1012)]