18667620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{757}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 57113784

約数和(自身を除く): 38446164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 757, 822, 1233, 1370, 1514, 1644, 2055, 2271, 2466, 2740, 3028, 3785, 4110, 4542, 4932, 6165, 6813, 7570, 8220, 9084, 11355, 12330, 13626, 15140, 22710, 24660, 27252, 34065, 45420, 68130, 103709, 136260, 207418, 311127, 414836, 518545, 622254, 933381, 1037090, 1244508, 1555635, 1866762, 2074180, 3111270, 3733524, 4666905, 6222540, 9333810, 18667620]

約数ペア:

[(1, 18667620), (2, 9333810), (3, 6222540), (4, 4666905), (5, 3733524), (6, 3111270), (9, 2074180), (10, 1866762), (12, 1555635), (15, 1244508), (18, 1037090), (20, 933381), (30, 622254), (36, 518545), (45, 414836), (60, 311127), (90, 207418), (137, 136260), (180, 103709), (274, 68130), (411, 45420), (548, 34065), (685, 27252), (757, 24660), (822, 22710), (1233, 15140), (1370, 13626), (1514, 12330), (1644, 11355), (2055, 9084), (2271, 8220), (2466, 7570), (2740, 6813), (3028, 6165), (3785, 4932), (4110, 4542)]