64967140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{66293}}^1$

素因数の和:66316

約数の個数: 36

約数和(自身を含む): 158707836

約数和(自身を除く): 93740696

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 66293, 132586, 265172, 331465, 464051, 662930, 928102, 1325860, 1856204, 2320255, 3248357, 4640510, 6496714, 9281020, 12993428, 16241785, 32483570, 64967140]

約数ペア:

[(1, 64967140), (2, 32483570), (4, 16241785), (5, 12993428), (7, 9281020), (10, 6496714), (14, 4640510), (20, 3248357), (28, 2320255), (35, 1856204), (49, 1325860), (70, 928102), (98, 662930), (140, 464051), (196, 331465), (245, 265172), (490, 132586), (980, 66293)]