9780470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139721}}^1$

素因数の和:139735

約数の個数: 16

約数和(自身を含む): 20119968

約数和(自身を除く): 10339498

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139721, 279442, 698605, 978047, 1397210, 1956094, 4890235, 9780470]

約数ペア:

[(1, 9780470), (2, 4890235), (5, 1956094), (7, 1397210), (10, 978047), (14, 698605), (35, 279442), (70, 139721)]