640050550

素因数分解:

$2^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{67021}}^1$

素因数の和:67224

約数の個数: 24

約数和(自身を含む): 1196744832

約数和(自身を除く): 556694282

約数列:

[1, 2, 5, 10, 25, 50, 191, 382, 955, 1910, 4775, 9550, 67021, 134042, 335105, 670210, 1675525, 3351050, 12801011, 25602022, 64005055, 128010110, 320025275, 640050550]

約数ペア:

[(1, 640050550), (2, 320025275), (5, 128010110), (10, 64005055), (25, 25602022), (50, 12801011), (191, 3351050), (382, 1675525), (955, 670210), (1910, 335105), (4775, 134042), (9550, 67021)]