1386366940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9902621}}^1$

素因数の和:9902637

約数の個数: 24

約数和(自身を含む): 3327280992

約数和(自身を除く): 1940914052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9902621, 19805242, 39610484, 49513105, 69318347, 99026210, 138636694, 198052420, 277273388, 346591735, 693183470, 1386366940]

約数ペア:

[(1, 1386366940), (2, 693183470), (4, 346591735), (5, 277273388), (7, 198052420), (10, 138636694), (14, 99026210), (20, 69318347), (28, 49513105), (35, 39610484), (70, 19805242), (140, 9902621)]