18220792

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 34981200

約数和(自身を除く): 16760408

約数列:

[1, 2, 4, 8, 89, 157, 163, 178, 314, 326, 356, 628, 652, 712, 1256, 1304, 13973, 14507, 25591, 27946, 29014, 51182, 55892, 58028, 102364, 111784, 116056, 204728, 2277599, 4555198, 9110396, 18220792]

約数ペア:

[(1, 18220792), (2, 9110396), (4, 4555198), (8, 2277599), (89, 204728), (157, 116056), (163, 111784), (178, 102364), (314, 58028), (326, 55892), (356, 51182), (628, 29014), (652, 27946), (712, 25591), (1256, 14507), (1304, 13973)]