142000640

素因数分解:

$2^9\times 5^1\times {\mathrm{55469}}^1$

素因数の和:55492

約数の個数: 40

約数和(自身を含む): 340474860

約数和(自身を除く): 198474220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 55469, 110938, 221876, 277345, 443752, 554690, 887504, 1109380, 1775008, 2218760, 3550016, 4437520, 7100032, 8875040, 14200064, 17750080, 28400128, 35500160, 71000320, 142000640]

約数ペア:

[(1, 142000640), (2, 71000320), (4, 35500160), (5, 28400128), (8, 17750080), (10, 14200064), (16, 8875040), (20, 7100032), (32, 4437520), (40, 3550016), (64, 2218760), (80, 1775008), (128, 1109380), (160, 887504), (256, 554690), (320, 443752), (512, 277345), (640, 221876), (1280, 110938), (2560, 55469)]