15940720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6871}}^1$

素因数の和:6913

約数の個数: 40

約数和(自身を含む): 38345760

約数和(自身を除く): 22405040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 6871, 13742, 27484, 34355, 54968, 68710, 109936, 137420, 199259, 274840, 398518, 549680, 797036, 996295, 1594072, 1992590, 3188144, 3985180, 7970360, 15940720]

約数ペア:

[(1, 15940720), (2, 7970360), (4, 3985180), (5, 3188144), (8, 1992590), (10, 1594072), (16, 996295), (20, 797036), (29, 549680), (40, 398518), (58, 274840), (80, 199259), (116, 137420), (145, 109936), (232, 68710), (290, 54968), (464, 34355), (580, 27484), (1160, 13742), (2320, 6871)]