20788170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 54238464

約数和(自身を除く): 33450294

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 151, 195, 302, 353, 390, 453, 706, 755, 906, 1059, 1510, 1765, 1963, 2118, 2265, 3530, 3926, 4530, 4589, 5295, 5889, 9178, 9815, 10590, 11778, 13767, 19630, 22945, 27534, 29445, 45890, 53303, 58890, 68835, 106606, 137670, 159909, 266515, 319818, 533030, 692939, 799545, 1385878, 1599090, 2078817, 3464695, 4157634, 6929390, 10394085, 20788170]

約数ペア:

[(1, 20788170), (2, 10394085), (3, 6929390), (5, 4157634), (6, 3464695), (10, 2078817), (13, 1599090), (15, 1385878), (26, 799545), (30, 692939), (39, 533030), (65, 319818), (78, 266515), (130, 159909), (151, 137670), (195, 106606), (302, 68835), (353, 58890), (390, 53303), (453, 45890), (706, 29445), (755, 27534), (906, 22945), (1059, 19630), (1510, 13767), (1765, 11778), (1963, 10590), (2118, 9815), (2265, 9178), (3530, 5889), (3926, 5295), (4530, 4589)]