204080940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{161969}}^1$

素因数の和:161991

約数の個数: 72

約数和(自身を含む): 707484960

約数和(自身を除く): 503404020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 161969, 323938, 485907, 647876, 809845, 971814, 1133783, 1457721, 1619690, 1943628, 2267566, 2429535, 2915442, 3239380, 3401349, 4535132, 4859070, 5668915, 5830884, 6802698, 7288605, 9718140, 10204047, 11337830, 13605396, 14577210, 17006745, 20408094, 22675660, 29154420, 34013490, 40816188, 51020235, 68026980, 102040470, 204080940]

約数ペア:

[(1, 204080940), (2, 102040470), (3, 68026980), (4, 51020235), (5, 40816188), (6, 34013490), (7, 29154420), (9, 22675660), (10, 20408094), (12, 17006745), (14, 14577210), (15, 13605396), (18, 11337830), (20, 10204047), (21, 9718140), (28, 7288605), (30, 6802698), (35, 5830884), (36, 5668915), (42, 4859070), (45, 4535132), (60, 3401349), (63, 3239380), (70, 2915442), (84, 2429535), (90, 2267566), (105, 1943628), (126, 1619690), (140, 1457721), (180, 1133783), (210, 971814), (252, 809845), (315, 647876), (420, 485907), (630, 323938), (1260, 161969)]