2781880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4091}}^1$

素因数の和:4119

約数の個数: 32

約数和(自身を含む): 6629040

約数和(自身を除く): 3847160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 4091, 8182, 16364, 20455, 32728, 40910, 69547, 81820, 139094, 163640, 278188, 347735, 556376, 695470, 1390940, 2781880]

約数ペア:

[(1, 2781880), (2, 1390940), (4, 695470), (5, 556376), (8, 347735), (10, 278188), (17, 163640), (20, 139094), (34, 81820), (40, 69547), (68, 40910), (85, 32728), (136, 20455), (170, 16364), (340, 8182), (680, 4091)]