20689968052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1\times {\mathrm{3881}}^1$

素因数の和:4708

約数の個数: 48

約数和(自身を含む): 39311212752

約数和(自身を除く): 18621244700

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 653, 1306, 2041, 2612, 3881, 4082, 7762, 8164, 8489, 15524, 16978, 33956, 50453, 100906, 102521, 201812, 205042, 410084, 609317, 1218634, 1332773, 2437268, 2534293, 2665546, 5068586, 5331092, 7921121, 10137172, 15842242, 31684484, 32945809, 65891618, 131783236, 397884001, 795768002, 1591536004, 5172492013, 10344984026, 20689968052]

約数ペア:

[(1, 20689968052), (2, 10344984026), (4, 5172492013), (13, 1591536004), (26, 795768002), (52, 397884001), (157, 131783236), (314, 65891618), (628, 32945809), (653, 31684484), (1306, 15842242), (2041, 10137172), (2612, 7921121), (3881, 5331092), (4082, 5068586), (7762, 2665546), (8164, 2534293), (8489, 2437268), (15524, 1332773), (16978, 1218634), (33956, 609317), (50453, 410084), (100906, 205042), (102521, 201812)]