207837500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 489968640

約数和(自身を除く): 282131140

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1279, 1300, 1625, 2500, 2558, 3125, 3250, 5116, 6250, 6395, 6500, 8125, 12500, 12790, 16250, 16627, 25580, 31975, 32500, 33254, 40625, 63950, 66508, 81250, 83135, 127900, 159875, 162500, 166270, 319750, 332540, 415675, 639500, 799375, 831350, 1598750, 1662700, 2078375, 3197500, 3996875, 4156750, 7993750, 8313500, 10391875, 15987500, 20783750, 41567500, 51959375, 103918750, 207837500]

約数ペア:

[(1, 207837500), (2, 103918750), (4, 51959375), (5, 41567500), (10, 20783750), (13, 15987500), (20, 10391875), (25, 8313500), (26, 7993750), (50, 4156750), (52, 3996875), (65, 3197500), (100, 2078375), (125, 1662700), (130, 1598750), (250, 831350), (260, 799375), (325, 639500), (500, 415675), (625, 332540), (650, 319750), (1250, 166270), (1279, 162500), (1300, 159875), (1625, 127900), (2500, 83135), (2558, 81250), (3125, 66508), (3250, 63950), (5116, 40625), (6250, 33254), (6395, 32500), (6500, 31975), (8125, 25580), (12500, 16627), (12790, 16250)]