199952220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256349}}^1$

素因数の和:256374

約数の個数: 48

約数和(自身を含む): 602935200

約数和(自身を除く): 402982980

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, 256349, 512698, 769047, 1025396, 1281745, 1538094, 2563490, 3076188, 3332537, 3845235, 5126980, 6665074, 7690470, 9997611, 13330148, 15380940, 16662685, 19995222, 33325370, 39990444, 49988055, 66650740, 99976110, 199952220]

約数ペア:

[(1, 199952220), (2, 99976110), (3, 66650740), (4, 49988055), (5, 39990444), (6, 33325370), (10, 19995222), (12, 16662685), (13, 15380940), (15, 13330148), (20, 9997611), (26, 7690470), (30, 6665074), (39, 5126980), (52, 3845235), (60, 3332537), (65, 3076188), (78, 2563490), (130, 1538094), (156, 1281745), (195, 1025396), (260, 769047), (390, 512698), (780, 256349)]