909020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 2247168

約数和(自身を除く): 1338148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 151, 172, 215, 301, 302, 430, 602, 604, 755, 860, 1057, 1204, 1505, 1510, 2114, 3010, 3020, 4228, 5285, 6020, 6493, 10570, 12986, 21140, 25972, 32465, 45451, 64930, 90902, 129860, 181804, 227255, 454510, 909020]

約数ペア:

[(1, 909020), (2, 454510), (4, 227255), (5, 181804), (7, 129860), (10, 90902), (14, 64930), (20, 45451), (28, 32465), (35, 25972), (43, 21140), (70, 12986), (86, 10570), (140, 6493), (151, 6020), (172, 5285), (215, 4228), (301, 3020), (302, 3010), (430, 2114), (602, 1510), (604, 1505), (755, 1204), (860, 1057)]