291479080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{66853}}^1$

素因数の和:66973

約数の個数: 32

約数和(自身を含む): 661854600

約数和(自身を除く): 370375520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 66853, 133706, 267412, 334265, 534824, 668530, 1337060, 2674120, 7286977, 14573954, 29147908, 36434885, 58295816, 72869770, 145739540, 291479080]

約数ペア:

[(1, 291479080), (2, 145739540), (4, 72869770), (5, 58295816), (8, 36434885), (10, 29147908), (20, 14573954), (40, 7286977), (109, 2674120), (218, 1337060), (436, 668530), (545, 534824), (872, 334265), (1090, 267412), (2180, 133706), (4360, 66853)]