389620480

素因数分解:

$2^8\times 5^1\times {\mathrm{304391}}^1$

素因数の和:304412

約数の個数: 36

約数和(自身を含む): 933265872

約数和(自身を除く): 543645392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 304391, 608782, 1217564, 1521955, 2435128, 3043910, 4870256, 6087820, 9740512, 12175640, 19481024, 24351280, 38962048, 48702560, 77924096, 97405120, 194810240, 389620480]

約数ペア:

[(1, 389620480), (2, 194810240), (4, 97405120), (5, 77924096), (8, 48702560), (10, 38962048), (16, 24351280), (20, 19481024), (32, 12175640), (40, 9740512), (64, 6087820), (80, 4870256), (128, 3043910), (160, 2435128), (256, 1521955), (320, 1217564), (640, 608782), (1280, 304391)]