209888938

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 392232960

約数和(自身を除く): 182344022

約数列:

[1, 2, 7, 14, 23, 37, 46, 74, 79, 158, 161, 223, 259, 322, 446, 518, 553, 851, 1106, 1561, 1702, 1817, 2923, 3122, 3634, 5129, 5846, 5957, 8251, 10258, 11914, 12719, 16502, 17617, 20461, 25438, 35234, 35903, 40922, 57757, 67229, 71806, 115514, 123319, 134458, 189773, 246638, 379546, 405191, 470603, 651829, 810382, 941206, 1303658, 1328411, 2656822, 2836337, 4562803, 5672674, 9125606, 14992067, 29984134, 104944469, 209888938]

約数ペア:

[(1, 209888938), (2, 104944469), (7, 29984134), (14, 14992067), (23, 9125606), (37, 5672674), (46, 4562803), (74, 2836337), (79, 2656822), (158, 1328411), (161, 1303658), (223, 941206), (259, 810382), (322, 651829), (446, 470603), (518, 405191), (553, 379546), (851, 246638), (1106, 189773), (1561, 134458), (1702, 123319), (1817, 115514), (2923, 71806), (3122, 67229), (3634, 57757), (5129, 40922), (5846, 35903), (5957, 35234), (8251, 25438), (10258, 20461), (11914, 17617), (12719, 16502)]