2447140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 5306112

約数和(自身を除く): 2858972

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3947, 7894, 15788, 19735, 39470, 78940, 122357, 244714, 489428, 611785, 1223570, 2447140]

約数ペア:

[(1, 2447140), (2, 1223570), (4, 611785), (5, 489428), (10, 244714), (20, 122357), (31, 78940), (62, 39470), (124, 19735), (155, 15788), (310, 7894), (620, 3947)]