68745880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245521}}^1$

素因数の和:245539

約数の個数: 32

約数和(自身を含む): 176775840

約数和(自身を除く): 108029960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245521, 491042, 982084, 1227605, 1718647, 1964168, 2455210, 3437294, 4910420, 6874588, 8593235, 9820840, 13749176, 17186470, 34372940, 68745880]

約数ペア:

[(1, 68745880), (2, 34372940), (4, 17186470), (5, 13749176), (7, 9820840), (8, 8593235), (10, 6874588), (14, 4910420), (20, 3437294), (28, 2455210), (35, 1964168), (40, 1718647), (56, 1227605), (70, 982084), (140, 491042), (280, 245521)]