197720820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99859}}^1$

素因数の和:99885

約数の個数: 72

約数和(自身を含む): 654282720

約数和(自身を除く): 456561900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 99859, 199718, 299577, 399436, 499295, 599154, 898731, 998590, 1098449, 1198308, 1497885, 1797462, 1997180, 2196898, 2995770, 3295347, 3594924, 4393796, 4493655, 5492245, 5991540, 6590694, 8987310, 9886041, 10984490, 13181388, 16476735, 17974620, 19772082, 21968980, 32953470, 39544164, 49430205, 65906940, 98860410, 197720820]

約数ペア:

[(1, 197720820), (2, 98860410), (3, 65906940), (4, 49430205), (5, 39544164), (6, 32953470), (9, 21968980), (10, 19772082), (11, 17974620), (12, 16476735), (15, 13181388), (18, 10984490), (20, 9886041), (22, 8987310), (30, 6590694), (33, 5991540), (36, 5492245), (44, 4493655), (45, 4393796), (55, 3594924), (60, 3295347), (66, 2995770), (90, 2196898), (99, 1997180), (110, 1797462), (132, 1497885), (165, 1198308), (180, 1098449), (198, 998590), (220, 898731), (330, 599154), (396, 499295), (495, 399436), (660, 299577), (990, 199718), (1980, 99859)]