1987851180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4732979}}^1$

素因数の和:4732998

約数の個数: 48

約数和(自身を含む): 6361125120

約数和(自身を除く): 4373273940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 4732979, 9465958, 14198937, 18931916, 23664895, 28397874, 33130853, 47329790, 56795748, 66261706, 70994685, 94659580, 99392559, 132523412, 141989370, 165654265, 198785118, 283978740, 331308530, 397570236, 496962795, 662617060, 993925590, 1987851180]

約数ペア:

[(1, 1987851180), (2, 993925590), (3, 662617060), (4, 496962795), (5, 397570236), (6, 331308530), (7, 283978740), (10, 198785118), (12, 165654265), (14, 141989370), (15, 132523412), (20, 99392559), (21, 94659580), (28, 70994685), (30, 66261706), (35, 56795748), (42, 47329790), (60, 33130853), (70, 28397874), (84, 23664895), (105, 18931916), (140, 14198937), (210, 9465958), (420, 4732979)]