290804516

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{251561}}^1$

素因数の和:251599

約数の個数: 18

約数和(自身を含む): 540606738

約数和(自身を除く): 249802222

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 251561, 503122, 1006244, 4276537, 8553074, 17106148, 72701129, 145402258, 290804516]

約数ペア:

[(1, 290804516), (2, 145402258), (4, 72701129), (17, 17106148), (34, 8553074), (68, 4276537), (289, 1006244), (578, 503122), (1156, 251561)]