20197907555

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1429}}^1\times {\mathrm{1861}}^1$

素因数の和:3340

約数の個数: 48

約数和(自身を含む): 29140151040

約数和(自身を除く): 8942243485

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1429, 1519, 1861, 7145, 7595, 9305, 10003, 13027, 44299, 50015, 57691, 65135, 70021, 91189, 221495, 288455, 310093, 350105, 403837, 455945, 1550465, 2019185, 2170651, 2659369, 2826859, 10853255, 13296845, 14134295, 18615583, 82440439, 93077915, 130309081, 412202195, 577083073, 651545405, 2885415365, 4039581511, 20197907555]

約数ペア:

[(1, 20197907555), (5, 4039581511), (7, 2885415365), (31, 651545405), (35, 577083073), (49, 412202195), (155, 130309081), (217, 93077915), (245, 82440439), (1085, 18615583), (1429, 14134295), (1519, 13296845), (1861, 10853255), (7145, 2826859), (7595, 2659369), (9305, 2170651), (10003, 2019185), (13027, 1550465), (44299, 455945), (50015, 403837), (57691, 350105), (65135, 310093), (70021, 288455), (91189, 221495)]