20550420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 69346368

約数和(自身を除く): 48795948

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, 97, 99, 107, 110, 132, 165, 180, 194, 198, 214, 220, 291, 321, 330, 388, 396, 428, 485, 495, 535, 582, 642, 660, 873, 963, 970, 990, 1067, 1070, 1164, 1177, 1284, 1455, 1605, 1746, 1926, 1940, 1980, 2134, 2140, 2354, 2910, 3201, 3210, 3492, 3531, 3852, 4268, 4365, 4708, 4815, 5335, 5820, 5885, 6402, 6420, 7062, 8730, 9603, 9630, 10379, 10593, 10670, 11770, 12804, 14124, 16005, 17460, 17655, 19206, 19260, 20758, 21186, 21340, 23540, 31137, 32010, 35310, 38412, 41516, 42372, 48015, 51895, 52965, 62274, 64020, 70620, 93411, 96030, 103790, 105930, 114169, 124548, 155685, 186822, 192060, 207580, 211860, 228338, 311370, 342507, 373644, 456676, 467055, 570845, 622740, 685014, 934110, 1027521, 1141690, 1370028, 1712535, 1868220, 2055042, 2283380, 3425070, 4110084, 5137605, 6850140, 10275210, 20550420]

約数ペア:

[(1, 20550420), (2, 10275210), (3, 6850140), (4, 5137605), (5, 4110084), (6, 3425070), (9, 2283380), (10, 2055042), (11, 1868220), (12, 1712535), (15, 1370028), (18, 1141690), (20, 1027521), (22, 934110), (30, 685014), (33, 622740), (36, 570845), (44, 467055), (45, 456676), (55, 373644), (60, 342507), (66, 311370), (90, 228338), (97, 211860), (99, 207580), (107, 192060), (110, 186822), (132, 155685), (165, 124548), (180, 114169), (194, 105930), (198, 103790), (214, 96030), (220, 93411), (291, 70620), (321, 64020), (330, 62274), (388, 52965), (396, 51895), (428, 48015), (485, 42372), (495, 41516), (535, 38412), (582, 35310), (642, 32010), (660, 31137), (873, 23540), (963, 21340), (970, 21186), (990, 20758), (1067, 19260), (1070, 19206), (1164, 17655), (1177, 17460), (1284, 16005), (1455, 14124), (1605, 12804), (1746, 11770), (1926, 10670), (1940, 10593), (1980, 10379), (2134, 9630), (2140, 9603), (2354, 8730), (2910, 7062), (3201, 6420), (3210, 6402), (3492, 5885), (3531, 5820), (3852, 5335), (4268, 4815), (4365, 4708)]