81159292

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{70207}}^1$

素因数の和:70245

約数の個数: 18

約数和(自身を含む): 150876992

約数和(自身を除く): 69717700

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 70207, 140414, 280828, 1193519, 2387038, 4774076, 20289823, 40579646, 81159292]

約数ペア:

[(1, 81159292), (2, 40579646), (4, 20289823), (17, 4774076), (34, 2387038), (68, 1193519), (289, 280828), (578, 140414), (1156, 70207)]