168989895

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21961}}^1$

素因数の和:21997

約数の個数: 40

約数和(自身を含む): 318888240

約数和(自身を除く): 149898345

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 7695, 21961, 65883, 109805, 197649, 329415, 417259, 592947, 988245, 1251777, 1778841, 2086295, 2964735, 3755331, 6258885, 8894205, 11265993, 18776655, 33797979, 56329965, 168989895]

約数ペア:

[(1, 168989895), (3, 56329965), (5, 33797979), (9, 18776655), (15, 11265993), (19, 8894205), (27, 6258885), (45, 3755331), (57, 2964735), (81, 2086295), (95, 1778841), (135, 1251777), (171, 988245), (285, 592947), (405, 417259), (513, 329415), (855, 197649), (1539, 109805), (2565, 65883), (7695, 21961)]