780692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1613}}^1$

素因数の和:1639

約数の個数: 18

約数和(自身を含む): 1502634

約数和(自身を除く): 721942

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1613, 3226, 6452, 17743, 35486, 70972, 195173, 390346, 780692]

約数ペア:

[(1, 780692), (2, 390346), (4, 195173), (11, 70972), (22, 35486), (44, 17743), (121, 6452), (242, 3226), (484, 1613)]