2991690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2583

約数の個数: 48

約数和(自身を含む): 8380008

約数和(自身を除く): 5388318

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 2557, 5114, 7671, 12785, 15342, 23013, 25570, 33241, 38355, 46026, 66482, 76710, 99723, 115065, 166205, 199446, 230130, 299169, 332410, 498615, 598338, 997230, 1495845, 2991690]

約数ペア:

[(1, 2991690), (2, 1495845), (3, 997230), (5, 598338), (6, 498615), (9, 332410), (10, 299169), (13, 230130), (15, 199446), (18, 166205), (26, 115065), (30, 99723), (39, 76710), (45, 66482), (65, 46026), (78, 38355), (90, 33241), (117, 25570), (130, 23013), (195, 15342), (234, 12785), (390, 7671), (585, 5114), (1170, 2557)]