2478640

素因数分解:

$2^4\times 5^1\times {\mathrm{30983}}^1$

素因数の和:30996

約数の個数: 20

約数和(自身を含む): 5763024

約数和(自身を除く): 3284384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 30983, 61966, 123932, 154915, 247864, 309830, 495728, 619660, 1239320, 2478640]

約数ペア:

[(1, 2478640), (2, 1239320), (4, 619660), (5, 495728), (8, 309830), (10, 247864), (16, 154915), (20, 123932), (40, 61966), (80, 30983)]