2720180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3163}}^1$

素因数の和:3215

約数の個数: 24

約数和(自身を含む): 5847072

約数和(自身を除く): 3126892

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 3163, 6326, 12652, 15815, 31630, 63260, 136009, 272018, 544036, 680045, 1360090, 2720180]

約数ペア:

[(1, 2720180), (2, 1360090), (4, 680045), (5, 544036), (10, 272018), (20, 136009), (43, 63260), (86, 31630), (172, 15815), (215, 12652), (430, 6326), (860, 3163)]