2009940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 5691840

約数和(自身を除く): 3681900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 241, 278, 417, 482, 556, 695, 723, 834, 964, 1205, 1390, 1446, 1668, 2085, 2410, 2780, 2892, 3615, 4170, 4820, 7230, 8340, 14460, 33499, 66998, 100497, 133996, 167495, 200994, 334990, 401988, 502485, 669980, 1004970, 2009940]

約数ペア:

[(1, 2009940), (2, 1004970), (3, 669980), (4, 502485), (5, 401988), (6, 334990), (10, 200994), (12, 167495), (15, 133996), (20, 100497), (30, 66998), (60, 33499), (139, 14460), (241, 8340), (278, 7230), (417, 4820), (482, 4170), (556, 3615), (695, 2892), (723, 2780), (834, 2410), (964, 2085), (1205, 1668), (1390, 1446)]