19784220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2213}}^1$

素因数の和:2374

約数の個数: 48

約数和(自身を含む): 55792800

約数和(自身を除く): 36008580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 149, 298, 447, 596, 745, 894, 1490, 1788, 2213, 2235, 2980, 4426, 4470, 6639, 8852, 8940, 11065, 13278, 22130, 26556, 33195, 44260, 66390, 132780, 329737, 659474, 989211, 1318948, 1648685, 1978422, 3297370, 3956844, 4946055, 6594740, 9892110, 19784220]

約数ペア:

[(1, 19784220), (2, 9892110), (3, 6594740), (4, 4946055), (5, 3956844), (6, 3297370), (10, 1978422), (12, 1648685), (15, 1318948), (20, 989211), (30, 659474), (60, 329737), (149, 132780), (298, 66390), (447, 44260), (596, 33195), (745, 26556), (894, 22130), (1490, 13278), (1788, 11065), (2213, 8940), (2235, 8852), (2980, 6639), (4426, 4470)]