78909716

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{68261}}^1$

素因数の和:68299

約数の個数: 18

約数和(自身を含む): 146695038

約数和(自身を除く): 67785322

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 68261, 136522, 273044, 1160437, 2320874, 4641748, 19727429, 39454858, 78909716]

約数ペア:

[(1, 78909716), (2, 39454858), (4, 19727429), (17, 4641748), (34, 2320874), (68, 1160437), (289, 273044), (578, 136522), (1156, 68261)]