390888320

素因数分解:

$2^7\times 5^1\times {\mathrm{610763}}^1$

素因数の和:610782

約数の個数: 32

約数和(自身を含む): 934468920

約数和(自身を除く): 543580600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 610763, 1221526, 2443052, 3053815, 4886104, 6107630, 9772208, 12215260, 19544416, 24430520, 39088832, 48861040, 78177664, 97722080, 195444160, 390888320]

約数ペア:

[(1, 390888320), (2, 195444160), (4, 97722080), (5, 78177664), (8, 48861040), (10, 39088832), (16, 24430520), (20, 19544416), (32, 12215260), (40, 9772208), (64, 6107630), (80, 4886104), (128, 3053815), (160, 2443052), (320, 1221526), (640, 610763)]