66938720

素因数分解:

$2^5\times 5^1\times {\mathrm{439}}^1\times {\mathrm{953}}^1$

素因数の和:1407

約数の個数: 48

約数和(自身を含む): 158669280

約数和(自身を除く): 91730560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 439, 878, 953, 1756, 1906, 2195, 3512, 3812, 4390, 4765, 7024, 7624, 8780, 9530, 14048, 15248, 17560, 19060, 30496, 35120, 38120, 70240, 76240, 152480, 418367, 836734, 1673468, 2091835, 3346936, 4183670, 6693872, 8367340, 13387744, 16734680, 33469360, 66938720]

約数ペア:

[(1, 66938720), (2, 33469360), (4, 16734680), (5, 13387744), (8, 8367340), (10, 6693872), (16, 4183670), (20, 3346936), (32, 2091835), (40, 1673468), (80, 836734), (160, 418367), (439, 152480), (878, 76240), (953, 70240), (1756, 38120), (1906, 35120), (2195, 30496), (3512, 19060), (3812, 17560), (4390, 15248), (4765, 14048), (7024, 9530), (7624, 8780)]