321664560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{191467}}^1$

素因数の和:191490

約数の個数: 80

約数和(自身を含む): 1139617536

約数和(自身を除く): 817952976

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 191467, 382934, 574401, 765868, 957335, 1148802, 1340269, 1531736, 1914670, 2297604, 2680538, 2872005, 3063472, 3829340, 4020807, 4595208, 5361076, 5744010, 6701345, 7658680, 8041614, 9190416, 10722152, 11488020, 13402690, 15317360, 16083228, 20104035, 21444304, 22976040, 26805380, 32166456, 40208070, 45952080, 53610760, 64332912, 80416140, 107221520, 160832280, 321664560]

約数ペア:

[(1, 321664560), (2, 160832280), (3, 107221520), (4, 80416140), (5, 64332912), (6, 53610760), (7, 45952080), (8, 40208070), (10, 32166456), (12, 26805380), (14, 22976040), (15, 21444304), (16, 20104035), (20, 16083228), (21, 15317360), (24, 13402690), (28, 11488020), (30, 10722152), (35, 9190416), (40, 8041614), (42, 7658680), (48, 6701345), (56, 5744010), (60, 5361076), (70, 4595208), (80, 4020807), (84, 3829340), (105, 3063472), (112, 2872005), (120, 2680538), (140, 2297604), (168, 1914670), (210, 1531736), (240, 1340269), (280, 1148802), (336, 957335), (420, 765868), (560, 574401), (840, 382934), (1680, 191467)]