720369520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{692663}}^1$

素因数の和:692689

約数の個数: 40

約数和(自身を含む): 1803697056

約数和(自身を除く): 1083327536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 692663, 1385326, 2770652, 3463315, 5541304, 6926630, 9004619, 11082608, 13853260, 18009238, 27706520, 36018476, 45023095, 55413040, 72036952, 90046190, 144073904, 180092380, 360184760, 720369520]

約数ペア:

[(1, 720369520), (2, 360184760), (4, 180092380), (5, 144073904), (8, 90046190), (10, 72036952), (13, 55413040), (16, 45023095), (20, 36018476), (26, 27706520), (40, 18009238), (52, 13853260), (65, 11082608), (80, 9004619), (104, 6926630), (130, 5541304), (208, 3463315), (260, 2770652), (520, 1385326), (1040, 692663)]