90840320

素因数分解:

$2^8\times 5^1\times {\mathrm{70969}}^1$

素因数の和:70990

約数の個数: 36

約数和(自身を含む): 217594020

約数和(自身を除く): 126753700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70969, 141938, 283876, 354845, 567752, 709690, 1135504, 1419380, 2271008, 2838760, 4542016, 5677520, 9084032, 11355040, 18168064, 22710080, 45420160, 90840320]

約数ペア:

[(1, 90840320), (2, 45420160), (4, 22710080), (5, 18168064), (8, 11355040), (10, 9084032), (16, 5677520), (20, 4542016), (32, 2838760), (40, 2271008), (64, 1419380), (80, 1135504), (128, 709690), (160, 567752), (256, 354845), (320, 283876), (640, 141938), (1280, 70969)]