256639684

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{539159}}^1$

素因数の和:539187

約数の個数: 24

約数和(自身を含む): 543473280

約数和(自身を除く): 286833596

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 539159, 1078318, 2156636, 3774113, 7548226, 9165703, 15096452, 18331406, 36662812, 64159921, 128319842, 256639684]

約数ペア:

[(1, 256639684), (2, 128319842), (4, 64159921), (7, 36662812), (14, 18331406), (17, 15096452), (28, 9165703), (34, 7548226), (68, 3774113), (119, 2156636), (238, 1078318), (476, 539159)]