68913880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{246121}}^1$

素因数の和:246139

約数の個数: 32

約数和(自身を含む): 177207840

約数和(自身を除く): 108293960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 246121, 492242, 984484, 1230605, 1722847, 1968968, 2461210, 3445694, 4922420, 6891388, 8614235, 9844840, 13782776, 17228470, 34456940, 68913880]

約数ペア:

[(1, 68913880), (2, 34456940), (4, 17228470), (5, 13782776), (7, 9844840), (8, 8614235), (10, 6891388), (14, 4922420), (20, 3445694), (28, 2461210), (35, 1968968), (40, 1722847), (56, 1230605), (70, 984484), (140, 492242), (280, 246121)]