71990415

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{509}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 143208000

約数和(自身を除く): 71217585

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 449, 509, 1347, 1527, 2245, 2545, 3143, 3563, 4041, 4581, 6735, 7635, 9429, 10689, 15715, 17815, 20205, 22905, 28287, 32067, 47145, 53445, 141435, 160335, 228541, 685623, 1142705, 1599787, 2056869, 3428115, 4799361, 7998935, 10284345, 14398083, 23996805, 71990415]

約数ペア:

[(1, 71990415), (3, 23996805), (5, 14398083), (7, 10284345), (9, 7998935), (15, 4799361), (21, 3428115), (35, 2056869), (45, 1599787), (63, 1142705), (105, 685623), (315, 228541), (449, 160335), (509, 141435), (1347, 53445), (1527, 47145), (2245, 32067), (2545, 28287), (3143, 22905), (3563, 20205), (4041, 17815), (4581, 15715), (6735, 10689), (7635, 9429)]