7760220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9949}}^1$

素因数の和:9974

約数の個数: 48

約数和(自身を含む): 23402400

約数和(自身を除く): 15642180

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, 9949, 19898, 29847, 39796, 49745, 59694, 99490, 119388, 129337, 149235, 198980, 258674, 298470, 388011, 517348, 596940, 646685, 776022, 1293370, 1552044, 1940055, 2586740, 3880110, 7760220]

約数ペア:

[(1, 7760220), (2, 3880110), (3, 2586740), (4, 1940055), (5, 1552044), (6, 1293370), (10, 776022), (12, 646685), (13, 596940), (15, 517348), (20, 388011), (26, 298470), (30, 258674), (39, 198980), (52, 149235), (60, 129337), (65, 119388), (78, 99490), (130, 59694), (156, 49745), (195, 39796), (260, 29847), (390, 19898), (780, 9949)]