77978864

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{286687}}^1$

素因数の和:286712

約数の個数: 20

約数和(自身を含む): 159971904

約数和(自身を除く): 81993040

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 286687, 573374, 1146748, 2293496, 4586992, 4873679, 9747358, 19494716, 38989432, 77978864]

約数ペア:

[(1, 77978864), (2, 38989432), (4, 19494716), (8, 9747358), (16, 4873679), (17, 4586992), (34, 2293496), (68, 1146748), (136, 573374), (272, 286687)]