279810580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{285521}}^1$

素因数の和:285544

約数の個数: 36

約数和(自身を含む): 683539668

約数和(自身を除く): 403729088

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 285521, 571042, 1142084, 1427605, 1998647, 2855210, 3997294, 5710420, 7994588, 9993235, 13990529, 19986470, 27981058, 39972940, 55962116, 69952645, 139905290, 279810580]

約数ペア:

[(1, 279810580), (2, 139905290), (4, 69952645), (5, 55962116), (7, 39972940), (10, 27981058), (14, 19986470), (20, 13990529), (28, 9993235), (35, 7994588), (49, 5710420), (70, 3997294), (98, 2855210), (140, 1998647), (196, 1427605), (245, 1142084), (490, 571042), (980, 285521)]