20198776720

素因数分解:

$2^4\times 5^1\times {\mathrm{252484709}}^1$

素因数の和:252484722

約数の個数: 20

約数和(自身を含む): 46962156060

約数和(自身を除く): 26763379340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252484709, 504969418, 1009938836, 1262423545, 2019877672, 2524847090, 4039755344, 5049694180, 10099388360, 20198776720]

約数ペア:

[(1, 20198776720), (2, 10099388360), (4, 5049694180), (5, 4039755344), (8, 2524847090), (10, 2019877672), (16, 1262423545), (20, 1009938836), (40, 504969418), (80, 252484709)]