15740000

素因数分解:

$2^5\times 5^4\times {\mathrm{787}}^1$

素因数の和:817

約数の個数: 60

約数和(自身を含む): 38771964

約数和(自身を除く): 23031964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 787, 800, 1000, 1250, 1574, 2000, 2500, 3148, 3935, 4000, 5000, 6296, 7870, 10000, 12592, 15740, 19675, 20000, 25184, 31480, 39350, 62960, 78700, 98375, 125920, 157400, 196750, 314800, 393500, 491875, 629600, 787000, 983750, 1574000, 1967500, 3148000, 3935000, 7870000, 15740000]

約数ペア:

[(1, 15740000), (2, 7870000), (4, 3935000), (5, 3148000), (8, 1967500), (10, 1574000), (16, 983750), (20, 787000), (25, 629600), (32, 491875), (40, 393500), (50, 314800), (80, 196750), (100, 157400), (125, 125920), (160, 98375), (200, 78700), (250, 62960), (400, 39350), (500, 31480), (625, 25184), (787, 20000), (800, 19675), (1000, 15740), (1250, 12592), (1574, 10000), (2000, 7870), (2500, 6296), (3148, 5000), (3935, 4000)]