78801720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{656681}}^1$

素因数の和:656695

約数の個数: 32

約数和(自身を含む): 236405520

約数和(自身を除く): 157603800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 656681, 1313362, 1970043, 2626724, 3283405, 3940086, 5253448, 6566810, 7880172, 9850215, 13133620, 15760344, 19700430, 26267240, 39400860, 78801720]

約数ペア:

[(1, 78801720), (2, 39400860), (3, 26267240), (4, 19700430), (5, 15760344), (6, 13133620), (8, 9850215), (10, 7880172), (12, 6566810), (15, 5253448), (20, 3940086), (24, 3283405), (30, 2626724), (40, 1970043), (60, 1313362), (120, 656681)]