30728560

素因数分解:

$2^4\times 5^1\times {\mathrm{384107}}^1$

素因数の和:384120

約数の個数: 20

約数和(自身を含む): 71444088

約数和(自身を除く): 40715528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 384107, 768214, 1536428, 1920535, 3072856, 3841070, 6145712, 7682140, 15364280, 30728560]

約数ペア:

[(1, 30728560), (2, 15364280), (4, 7682140), (5, 6145712), (8, 3841070), (10, 3072856), (16, 1920535), (20, 1536428), (40, 768214), (80, 384107)]