19386180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9791}}^1$

素因数の和:9817

約数の個数: 72

約数和(自身を含む): 64157184

約数和(自身を除く): 44771004

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, 9791, 19582, 29373, 39164, 48955, 58746, 88119, 97910, 107701, 117492, 146865, 176238, 195820, 215402, 293730, 323103, 352476, 430804, 440595, 538505, 587460, 646206, 881190, 969309, 1077010, 1292412, 1615515, 1762380, 1938618, 2154020, 3231030, 3877236, 4846545, 6462060, 9693090, 19386180]

約数ペア:

[(1, 19386180), (2, 9693090), (3, 6462060), (4, 4846545), (5, 3877236), (6, 3231030), (9, 2154020), (10, 1938618), (11, 1762380), (12, 1615515), (15, 1292412), (18, 1077010), (20, 969309), (22, 881190), (30, 646206), (33, 587460), (36, 538505), (44, 440595), (45, 430804), (55, 352476), (60, 323103), (66, 293730), (90, 215402), (99, 195820), (110, 176238), (132, 146865), (165, 117492), (180, 107701), (198, 97910), (220, 88119), (330, 58746), (396, 48955), (495, 39164), (660, 29373), (990, 19582), (1980, 9791)]