19969832560

素因数分解:

$2^4\times 5^1\times {\mathrm{249622907}}^1$

素因数の和:249622920

約数の個数: 20

約数和(自身を含む): 46429860888

約数和(自身を除く): 26460028328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 249622907, 499245814, 998491628, 1248114535, 1996983256, 2496229070, 3993966512, 4992458140, 9984916280, 19969832560]

約数ペア:

[(1, 19969832560), (2, 9984916280), (4, 4992458140), (5, 3993966512), (8, 2496229070), (10, 1996983256), (16, 1248114535), (20, 998491628), (40, 499245814), (80, 249622907)]