20039505

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31069}}^1$

素因数の和:31120

約数の個数: 16

約数和(自身を含む): 32809920

約数和(自身を除く): 12770415

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31069, 93207, 155345, 466035, 1335967, 4007901, 6679835, 20039505]

約数ペア:

[(1, 20039505), (3, 6679835), (5, 4007901), (15, 1335967), (43, 466035), (129, 155345), (215, 93207), (645, 31069)]