128868120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{357967}}^1$

素因数の和:357984

約数の個数: 48

約数和(自身を含む): 418822560

約数和(自身を除く): 289954440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 357967, 715934, 1073901, 1431868, 1789835, 2147802, 2863736, 3221703, 3579670, 4295604, 5369505, 6443406, 7159340, 8591208, 10739010, 12886812, 14318680, 16108515, 21478020, 25773624, 32217030, 42956040, 64434060, 128868120]

約数ペア:

[(1, 128868120), (2, 64434060), (3, 42956040), (4, 32217030), (5, 25773624), (6, 21478020), (8, 16108515), (9, 14318680), (10, 12886812), (12, 10739010), (15, 8591208), (18, 7159340), (20, 6443406), (24, 5369505), (30, 4295604), (36, 3579670), (40, 3221703), (45, 2863736), (60, 2147802), (72, 1789835), (90, 1431868), (120, 1073901), (180, 715934), (360, 357967)]