16680320

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 40575600

約数和(自身を除く): 23895280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 389, 536, 640, 670, 778, 1072, 1340, 1556, 1945, 2144, 2680, 3112, 3890, 4288, 5360, 6224, 7780, 8576, 10720, 12448, 15560, 21440, 24896, 26063, 31120, 42880, 49792, 52126, 62240, 104252, 124480, 130315, 208504, 248960, 260630, 417008, 521260, 834016, 1042520, 1668032, 2085040, 3336064, 4170080, 8340160, 16680320]

約数ペア:

[(1, 16680320), (2, 8340160), (4, 4170080), (5, 3336064), (8, 2085040), (10, 1668032), (16, 1042520), (20, 834016), (32, 521260), (40, 417008), (64, 260630), (67, 248960), (80, 208504), (128, 130315), (134, 124480), (160, 104252), (268, 62240), (320, 52126), (335, 49792), (389, 42880), (536, 31120), (640, 26063), (670, 24896), (778, 21440), (1072, 15560), (1340, 12448), (1556, 10720), (1945, 8576), (2144, 7780), (2680, 6224), (3112, 5360), (3890, 4288)]