78178490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 81035110

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 89, 130, 145, 178, 233, 290, 377, 445, 466, 754, 890, 1157, 1165, 1885, 2314, 2330, 2581, 3029, 3770, 5162, 5785, 6058, 6757, 11570, 12905, 13514, 15145, 20737, 25810, 30290, 33553, 33785, 41474, 67106, 67570, 87841, 103685, 167765, 175682, 207370, 269581, 335530, 439205, 539162, 601373, 878410, 1202746, 1347905, 2695810, 3006865, 6013730, 7817849, 15635698, 39089245, 78178490]

約数ペア:

[(1, 78178490), (2, 39089245), (5, 15635698), (10, 7817849), (13, 6013730), (26, 3006865), (29, 2695810), (58, 1347905), (65, 1202746), (89, 878410), (130, 601373), (145, 539162), (178, 439205), (233, 335530), (290, 269581), (377, 207370), (445, 175682), (466, 167765), (754, 103685), (890, 87841), (1157, 67570), (1165, 67106), (1885, 41474), (2314, 33785), (2330, 33553), (2581, 30290), (3029, 25810), (3770, 20737), (5162, 15145), (5785, 13514), (6058, 12905), (6757, 11570)]