289864760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{381401}}^1$

素因数の和:381431

約数の個数: 32

約数和(自身を含む): 686523600

約数和(自身を除く): 396658840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 381401, 762802, 1525604, 1907005, 3051208, 3814010, 7246619, 7628020, 14493238, 15256040, 28986476, 36233095, 57972952, 72466190, 144932380, 289864760]

約数ペア:

[(1, 289864760), (2, 144932380), (4, 72466190), (5, 57972952), (8, 36233095), (10, 28986476), (19, 15256040), (20, 14493238), (38, 7628020), (40, 7246619), (76, 3814010), (95, 3051208), (152, 1907005), (190, 1525604), (380, 762802), (760, 381401)]