1840640

素因数分解:

$2^9\times 5^1\times {\mathrm{719}}^1$

素因数の和:742

約数の個数: 40

約数和(自身を含む): 4419360

約数和(自身を除く): 2578720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 719, 1280, 1438, 2560, 2876, 3595, 5752, 7190, 11504, 14380, 23008, 28760, 46016, 57520, 92032, 115040, 184064, 230080, 368128, 460160, 920320, 1840640]

約数ペア:

[(1, 1840640), (2, 920320), (4, 460160), (5, 368128), (8, 230080), (10, 184064), (16, 115040), (20, 92032), (32, 57520), (40, 46016), (64, 28760), (80, 23008), (128, 14380), (160, 11504), (256, 7190), (320, 5752), (512, 3595), (640, 2876), (719, 2560), (1280, 1438)]