39740000

素因数分解:

$2^5\times 5^4\times {\mathrm{1987}}^1$

素因数の和:2017

約数の個数: 60

約数和(自身を含む): 97815564

約数和(自身を除く): 58075564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1987, 2000, 2500, 3974, 4000, 5000, 7948, 9935, 10000, 15896, 19870, 20000, 31792, 39740, 49675, 63584, 79480, 99350, 158960, 198700, 248375, 317920, 397400, 496750, 794800, 993500, 1241875, 1589600, 1987000, 2483750, 3974000, 4967500, 7948000, 9935000, 19870000, 39740000]

約数ペア:

[(1, 39740000), (2, 19870000), (4, 9935000), (5, 7948000), (8, 4967500), (10, 3974000), (16, 2483750), (20, 1987000), (25, 1589600), (32, 1241875), (40, 993500), (50, 794800), (80, 496750), (100, 397400), (125, 317920), (160, 248375), (200, 198700), (250, 158960), (400, 99350), (500, 79480), (625, 63584), (800, 49675), (1000, 39740), (1250, 31792), (1987, 20000), (2000, 19870), (2500, 15896), (3974, 10000), (4000, 9935), (5000, 7948)]