199068660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157991}}^1$

素因数の和:158013

約数の個数: 72

約数和(自身を含む): 690109056

約数和(自身を除く): 491040396

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 157991, 315982, 473973, 631964, 789955, 947946, 1105937, 1421919, 1579910, 1895892, 2211874, 2369865, 2843838, 3159820, 3317811, 4423748, 4739730, 5529685, 5687676, 6635622, 7109595, 9479460, 9953433, 11059370, 13271244, 14219190, 16589055, 19906866, 22118740, 28438380, 33178110, 39813732, 49767165, 66356220, 99534330, 199068660]

約数ペア:

[(1, 199068660), (2, 99534330), (3, 66356220), (4, 49767165), (5, 39813732), (6, 33178110), (7, 28438380), (9, 22118740), (10, 19906866), (12, 16589055), (14, 14219190), (15, 13271244), (18, 11059370), (20, 9953433), (21, 9479460), (28, 7109595), (30, 6635622), (35, 5687676), (36, 5529685), (42, 4739730), (45, 4423748), (60, 3317811), (63, 3159820), (70, 2843838), (84, 2369865), (90, 2211874), (105, 1895892), (126, 1579910), (140, 1421919), (180, 1105937), (210, 947946), (252, 789955), (315, 631964), (420, 473973), (630, 315982), (1260, 157991)]