16640120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{887}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 43476480

約数和(自身を除く): 26836360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 887, 938, 1340, 1774, 1876, 2345, 2680, 3548, 3752, 4435, 4690, 6209, 7096, 8870, 9380, 12418, 17740, 18760, 24836, 31045, 35480, 49672, 59429, 62090, 118858, 124180, 237716, 248360, 297145, 416003, 475432, 594290, 832006, 1188580, 1664012, 2080015, 2377160, 3328024, 4160030, 8320060, 16640120]

約数ペア:

[(1, 16640120), (2, 8320060), (4, 4160030), (5, 3328024), (7, 2377160), (8, 2080015), (10, 1664012), (14, 1188580), (20, 832006), (28, 594290), (35, 475432), (40, 416003), (56, 297145), (67, 248360), (70, 237716), (134, 124180), (140, 118858), (268, 62090), (280, 59429), (335, 49672), (469, 35480), (536, 31045), (670, 24836), (887, 18760), (938, 17740), (1340, 12418), (1774, 9380), (1876, 8870), (2345, 7096), (2680, 6209), (3548, 4690), (3752, 4435)]