19950000004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1\times {\mathrm{27299}}^1$

素因数の和:28308

約数の個数: 48

約数和(自身を含む): 40369492800

約数和(自身を除く): 20419492796

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 977, 1954, 3908, 10747, 16609, 21494, 27299, 33218, 42988, 54598, 66436, 109196, 182699, 300289, 365398, 464083, 600578, 730796, 928166, 1201156, 1856332, 5104913, 10209826, 20419652, 26671123, 53342246, 106684492, 293382353, 453409091, 586764706, 906818182, 1173529412, 1813636364, 4987500001, 9975000002, 19950000004]

約数ペア:

[(1, 19950000004), (2, 9975000002), (4, 4987500001), (11, 1813636364), (17, 1173529412), (22, 906818182), (34, 586764706), (44, 453409091), (68, 293382353), (187, 106684492), (374, 53342246), (748, 26671123), (977, 20419652), (1954, 10209826), (3908, 5104913), (10747, 1856332), (16609, 1201156), (21494, 928166), (27299, 730796), (33218, 600578), (42988, 464083), (54598, 365398), (66436, 300289), (109196, 182699)]