18865420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134753}}^1$

素因数の和:134769

約数の個数: 24

約数和(自身を含む): 45277344

約数和(自身を除く): 26411924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134753, 269506, 539012, 673765, 943271, 1347530, 1886542, 2695060, 3773084, 4716355, 9432710, 18865420]

約数ペア:

[(1, 18865420), (2, 9432710), (4, 4716355), (5, 3773084), (7, 2695060), (10, 1886542), (14, 1347530), (20, 943271), (28, 673765), (35, 539012), (70, 269506), (140, 134753)]