8991010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 19206720

約数和(自身を除く): 10215710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 98, 118, 245, 295, 311, 413, 490, 590, 622, 826, 1555, 2065, 2177, 2891, 3110, 4130, 4354, 5782, 10885, 14455, 15239, 18349, 21770, 28910, 30478, 36698, 76195, 91745, 128443, 152390, 183490, 256886, 642215, 899101, 1284430, 1798202, 4495505, 8991010]

約数ペア:

[(1, 8991010), (2, 4495505), (5, 1798202), (7, 1284430), (10, 899101), (14, 642215), (35, 256886), (49, 183490), (59, 152390), (70, 128443), (98, 91745), (118, 76195), (245, 36698), (295, 30478), (311, 28910), (413, 21770), (490, 18349), (590, 15239), (622, 14455), (826, 10885), (1555, 5782), (2065, 4354), (2177, 4130), (2891, 3110)]