205589985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 362741760

約数和(自身を除く): 157151775

約数列:

[1, 3, 5, 15, 23, 31, 47, 69, 93, 115, 141, 155, 235, 345, 409, 465, 705, 713, 1081, 1227, 1457, 2045, 2139, 3243, 3565, 4371, 5405, 6135, 7285, 9407, 10695, 12679, 16215, 19223, 21855, 28221, 33511, 38037, 47035, 57669, 63395, 96115, 100533, 141105, 167555, 190185, 288345, 291617, 442129, 502665, 595913, 874851, 1326387, 1458085, 1787739, 2210645, 2979565, 4374255, 6631935, 8938695, 13705999, 41117997, 68529995, 205589985]

約数ペア:

[(1, 205589985), (3, 68529995), (5, 41117997), (15, 13705999), (23, 8938695), (31, 6631935), (47, 4374255), (69, 2979565), (93, 2210645), (115, 1787739), (141, 1458085), (155, 1326387), (235, 874851), (345, 595913), (409, 502665), (465, 442129), (705, 291617), (713, 288345), (1081, 190185), (1227, 167555), (1457, 141105), (2045, 100533), (2139, 96115), (3243, 63395), (3565, 57669), (4371, 47035), (5405, 38037), (6135, 33511), (7285, 28221), (9407, 21855), (10695, 19223), (12679, 16215)]