20738228225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{109451}}^1$

素因数の和:109538

約数の個数: 48

約数和(自身を含む): 30781404864

約数和(自身を除く): 10043176639

約数列:

[1, 5, 11, 13, 25, 53, 55, 65, 143, 265, 275, 325, 583, 689, 715, 1325, 2915, 3445, 3575, 7579, 14575, 17225, 37895, 109451, 189475, 547255, 1203961, 1422863, 2736275, 5800903, 6019805, 7114315, 15651493, 29004515, 30099025, 35571575, 63809933, 75411739, 78257465, 145022575, 319049665, 377058695, 391287325, 829529129, 1595248325, 1885293475, 4147645645, 20738228225]

約数ペア:

[(1, 20738228225), (5, 4147645645), (11, 1885293475), (13, 1595248325), (25, 829529129), (53, 391287325), (55, 377058695), (65, 319049665), (143, 145022575), (265, 78257465), (275, 75411739), (325, 63809933), (583, 35571575), (689, 30099025), (715, 29004515), (1325, 15651493), (2915, 7114315), (3445, 6019805), (3575, 5800903), (7579, 2736275), (14575, 1422863), (17225, 1203961), (37895, 547255), (109451, 189475)]