21065768320

素因数分解:

$2^7\times 5^1\times {\mathrm{32915263}}^1$

素因数の和:32915282

約数の個数: 32

約数和(自身を含む): 50360353920

約数和(自身を除く): 29294585600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32915263, 65830526, 131661052, 164576315, 263322104, 329152630, 526644208, 658305260, 1053288416, 1316610520, 2106576832, 2633221040, 4213153664, 5266442080, 10532884160, 21065768320]

約数ペア:

[(1, 21065768320), (2, 10532884160), (4, 5266442080), (5, 4213153664), (8, 2633221040), (10, 2106576832), (16, 1316610520), (20, 1053288416), (32, 658305260), (40, 526644208), (64, 329152630), (80, 263322104), (128, 164576315), (160, 131661052), (320, 65830526), (640, 32915263)]