68812520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245759}}^1$

素因数の和:245777

約数の個数: 32

約数和(自身を含む): 176947200

約数和(自身を除く): 108134680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245759, 491518, 983036, 1228795, 1720313, 1966072, 2457590, 3440626, 4915180, 6881252, 8601565, 9830360, 13762504, 17203130, 34406260, 68812520]

約数ペア:

[(1, 68812520), (2, 34406260), (4, 17203130), (5, 13762504), (7, 9830360), (8, 8601565), (10, 6881252), (14, 4915180), (20, 3440626), (28, 2457590), (35, 1966072), (40, 1720313), (56, 1228795), (70, 983036), (140, 491518), (280, 245759)]