19724620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6619}}^1$

素因数の和:6777

約数の個数: 24

約数和(自身を含む): 41706000

約数和(自身を除く): 21981380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6619, 13238, 26476, 33095, 66190, 132380, 986231, 1972462, 3944924, 4931155, 9862310, 19724620]

約数ペア:

[(1, 19724620), (2, 9862310), (4, 4931155), (5, 3944924), (10, 1972462), (20, 986231), (149, 132380), (298, 66190), (596, 33095), (745, 26476), (1490, 13238), (2980, 6619)]