18670925

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 29581440

約数和(自身を除く): 10910515

約数列:

[1, 5, 7, 13, 25, 29, 35, 65, 91, 145, 175, 203, 283, 325, 377, 455, 725, 1015, 1415, 1885, 1981, 2275, 2639, 3679, 5075, 7075, 8207, 9425, 9905, 13195, 18395, 25753, 41035, 49525, 57449, 65975, 91975, 106691, 128765, 205175, 287245, 533455, 643825, 746837, 1436225, 2667275, 3734185, 18670925]

約数ペア:

[(1, 18670925), (5, 3734185), (7, 2667275), (13, 1436225), (25, 746837), (29, 643825), (35, 533455), (65, 287245), (91, 205175), (145, 128765), (175, 106691), (203, 91975), (283, 65975), (325, 57449), (377, 49525), (455, 41035), (725, 25753), (1015, 18395), (1415, 13195), (1885, 9905), (1981, 9425), (2275, 8207), (2639, 7075), (3679, 5075)]