269440

素因数分解:

$2^7\times 5^1\times {\mathrm{421}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 645660

約数和(自身を除く): 376220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 421, 640, 842, 1684, 2105, 3368, 4210, 6736, 8420, 13472, 16840, 26944, 33680, 53888, 67360, 134720, 269440]

約数ペア:

[(1, 269440), (2, 134720), (4, 67360), (5, 53888), (8, 33680), (10, 26944), (16, 16840), (20, 13472), (32, 8420), (40, 6736), (64, 4210), (80, 3368), (128, 2105), (160, 1684), (320, 842), (421, 640)]