20068685

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6301}}^1$

素因数の和:6333

約数の個数: 24

約数和(自身を含む): 30173976

約数和(自身を除く): 10105291

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6301, 31505, 44107, 81913, 220535, 308749, 409565, 573391, 1543745, 2866955, 4013737, 20068685]

約数ペア:

[(1, 20068685), (5, 4013737), (7, 2866955), (13, 1543745), (35, 573391), (49, 409565), (65, 308749), (91, 220535), (245, 81913), (455, 44107), (637, 31505), (3185, 6301)]