9909990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 25974000

約数和(自身を除く): 16064010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 739, 745, 894, 1341, 1478, 1490, 2217, 2235, 2682, 3695, 4434, 4470, 6651, 6705, 7390, 11085, 13302, 13410, 22170, 33255, 66510, 110111, 220222, 330333, 550555, 660666, 990999, 1101110, 1651665, 1981998, 3303330, 4954995, 9909990]

約数ペア:

[(1, 9909990), (2, 4954995), (3, 3303330), (5, 1981998), (6, 1651665), (9, 1101110), (10, 990999), (15, 660666), (18, 550555), (30, 330333), (45, 220222), (90, 110111), (149, 66510), (298, 33255), (447, 22170), (739, 13410), (745, 13302), (894, 11085), (1341, 7390), (1478, 6705), (1490, 6651), (2217, 4470), (2235, 4434), (2682, 3695)]