215681920

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17737}}^1$

素因数の和:17775

約数の個数: 64

約数和(自身を含む): 542782800

約数和(自身を除く): 327100880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 17737, 35474, 70948, 88685, 141896, 177370, 283792, 337003, 354740, 567584, 674006, 709480, 1135168, 1348012, 1418960, 1685015, 2270336, 2696024, 2837920, 3370030, 5392048, 5675840, 6740060, 10784096, 11351680, 13480120, 21568192, 26960240, 43136384, 53920480, 107840960, 215681920]

約数ペア:

[(1, 215681920), (2, 107840960), (4, 53920480), (5, 43136384), (8, 26960240), (10, 21568192), (16, 13480120), (19, 11351680), (20, 10784096), (32, 6740060), (38, 5675840), (40, 5392048), (64, 3370030), (76, 2837920), (80, 2696024), (95, 2270336), (128, 1685015), (152, 1418960), (160, 1348012), (190, 1135168), (304, 709480), (320, 674006), (380, 567584), (608, 354740), (640, 337003), (760, 283792), (1216, 177370), (1520, 141896), (2432, 88685), (3040, 70948), (6080, 35474), (12160, 17737)]