81646448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392531}}^1$

素因数の和:392552

約数の個数: 20

約数和(自身を含む): 170358888

約数和(自身を除く): 88712440

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392531, 785062, 1570124, 3140248, 5102903, 6280496, 10205806, 20411612, 40823224, 81646448]

約数ペア:

[(1, 81646448), (2, 40823224), (4, 20411612), (8, 10205806), (13, 6280496), (16, 5102903), (26, 3140248), (52, 1570124), (104, 785062), (208, 392531)]