157980457840

素因数分解:

$2^4\times 5^1\times {\mathrm{1974755723}}^1$

素因数の和:1974755736

約数の個数: 20

約数和(自身を含む): 367304564664

約数和(自身を除く): 209324106824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1974755723, 3949511446, 7899022892, 9873778615, 15798045784, 19747557230, 31596091568, 39495114460, 78990228920, 157980457840]

約数ペア:

[(1, 157980457840), (2, 78990228920), (4, 39495114460), (5, 31596091568), (8, 19747557230), (10, 15798045784), (16, 9873778615), (20, 7899022892), (40, 3949511446), (80, 1974755723)]