19710840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1979}}^1$

素因数の和:2076

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 40164360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1979, 1992, 2490, 3320, 3958, 4980, 5937, 7916, 9895, 9960, 11874, 15832, 19790, 23748, 29685, 39580, 47496, 59370, 79160, 118740, 164257, 237480, 328514, 492771, 657028, 821285, 985542, 1314056, 1642570, 1971084, 2463855, 3285140, 3942168, 4927710, 6570280, 9855420, 19710840]

約数ペア:

[(1, 19710840), (2, 9855420), (3, 6570280), (4, 4927710), (5, 3942168), (6, 3285140), (8, 2463855), (10, 1971084), (12, 1642570), (15, 1314056), (20, 985542), (24, 821285), (30, 657028), (40, 492771), (60, 328514), (83, 237480), (120, 164257), (166, 118740), (249, 79160), (332, 59370), (415, 47496), (498, 39580), (664, 29685), (830, 23748), (996, 19790), (1245, 15832), (1660, 11874), (1979, 9960), (1992, 9895), (2490, 7916), (3320, 5937), (3958, 4980)]