2144220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2749}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 6468000

約数和(自身を除く): 4323780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2749, 5498, 8247, 10996, 13745, 16494, 27490, 32988, 35737, 41235, 54980, 71474, 82470, 107211, 142948, 164940, 178685, 214422, 357370, 428844, 536055, 714740, 1072110, 2144220]

約数ペア:

[(1, 2144220), (2, 1072110), (3, 714740), (4, 536055), (5, 428844), (6, 357370), (10, 214422), (12, 178685), (13, 164940), (15, 142948), (20, 107211), (26, 82470), (30, 71474), (39, 54980), (52, 41235), (60, 35737), (65, 32988), (78, 27490), (130, 16494), (156, 13745), (195, 10996), (260, 8247), (390, 5498), (780, 2749)]