208845

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:51

約数の個数: 64

約数和(自身を含む): 483840

約数和(自身を除く): 274995

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 27, 35, 39, 45, 51, 63, 65, 85, 91, 105, 117, 119, 135, 153, 189, 195, 221, 255, 273, 315, 351, 357, 455, 459, 585, 595, 663, 765, 819, 945, 1071, 1105, 1365, 1547, 1755, 1785, 1989, 2295, 2457, 3213, 3315, 4095, 4641, 5355, 5967, 7735, 9945, 12285, 13923, 16065, 23205, 29835, 41769, 69615, 208845]

約数ペア:

[(1, 208845), (3, 69615), (5, 41769), (7, 29835), (9, 23205), (13, 16065), (15, 13923), (17, 12285), (21, 9945), (27, 7735), (35, 5967), (39, 5355), (45, 4641), (51, 4095), (63, 3315), (65, 3213), (85, 2457), (91, 2295), (105, 1989), (117, 1785), (119, 1755), (135, 1547), (153, 1365), (189, 1105), (195, 1071), (221, 945), (255, 819), (273, 765), (315, 663), (351, 595), (357, 585), (455, 459)]