278291279

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{12577}}^1$

素因数の和:12722

約数の個数: 16

約数和(自身を含む): 332059200

約数和(自身を除く): 53767921

約数列:

[1, 7, 29, 109, 203, 763, 3161, 12577, 22127, 88039, 364733, 1370893, 2553131, 9596251, 39755897, 278291279]

約数ペア:

[(1, 278291279), (7, 39755897), (29, 9596251), (109, 2553131), (203, 1370893), (763, 364733), (3161, 88039), (12577, 22127)]