19981770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{179}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 49027680

約数和(自身を除く): 29045910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 179, 183, 305, 358, 366, 537, 610, 895, 915, 1074, 1790, 1830, 2685, 3721, 5370, 7442, 10919, 11163, 18605, 21838, 22326, 32757, 37210, 54595, 55815, 65514, 109190, 111630, 163785, 327570, 666059, 1332118, 1998177, 3330295, 3996354, 6660590, 9990885, 19981770]

約数ペア:

[(1, 19981770), (2, 9990885), (3, 6660590), (5, 3996354), (6, 3330295), (10, 1998177), (15, 1332118), (30, 666059), (61, 327570), (122, 163785), (179, 111630), (183, 109190), (305, 65514), (358, 55815), (366, 54595), (537, 37210), (610, 32757), (895, 22326), (915, 21838), (1074, 18605), (1790, 11163), (1830, 10919), (2685, 7442), (3721, 5370)]