20038876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 42039648

約数和(自身を除く): 22000772

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 53, 106, 143, 212, 286, 572, 583, 661, 689, 1166, 1322, 1378, 2332, 2644, 2756, 7271, 7579, 8593, 14542, 15158, 17186, 29084, 30316, 34372, 35033, 70066, 94523, 140132, 189046, 378092, 385363, 455429, 770726, 910858, 1541452, 1821716, 5009719, 10019438, 20038876]

約数ペア:

[(1, 20038876), (2, 10019438), (4, 5009719), (11, 1821716), (13, 1541452), (22, 910858), (26, 770726), (44, 455429), (52, 385363), (53, 378092), (106, 189046), (143, 140132), (212, 94523), (286, 70066), (572, 35033), (583, 34372), (661, 30316), (689, 29084), (1166, 17186), (1322, 15158), (1378, 14542), (2332, 8593), (2644, 7579), (2756, 7271)]