561990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 1596672

約数和(自身を除く): 1034682

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 131, 143, 165, 195, 262, 286, 330, 390, 393, 429, 655, 715, 786, 858, 1310, 1430, 1441, 1703, 1965, 2145, 2882, 3406, 3930, 4290, 4323, 5109, 7205, 8515, 8646, 10218, 14410, 17030, 18733, 21615, 25545, 37466, 43230, 51090, 56199, 93665, 112398, 187330, 280995, 561990]

約数ペア:

[(1, 561990), (2, 280995), (3, 187330), (5, 112398), (6, 93665), (10, 56199), (11, 51090), (13, 43230), (15, 37466), (22, 25545), (26, 21615), (30, 18733), (33, 17030), (39, 14410), (55, 10218), (65, 8646), (66, 8515), (78, 7205), (110, 5109), (130, 4323), (131, 4290), (143, 3930), (165, 3406), (195, 2882), (262, 2145), (286, 1965), (330, 1703), (390, 1441), (393, 1430), (429, 1310), (655, 858), (715, 786)]