205590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 622080

約数和(自身を除く): 416490

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 89, 105, 110, 154, 165, 178, 210, 231, 267, 330, 385, 445, 462, 534, 623, 770, 890, 979, 1155, 1246, 1335, 1869, 1958, 2310, 2670, 2937, 3115, 3738, 4895, 5874, 6230, 6853, 9345, 9790, 13706, 14685, 18690, 20559, 29370, 34265, 41118, 68530, 102795, 205590]

約数ペア:

[(1, 205590), (2, 102795), (3, 68530), (5, 41118), (6, 34265), (7, 29370), (10, 20559), (11, 18690), (14, 14685), (15, 13706), (21, 9790), (22, 9345), (30, 6853), (33, 6230), (35, 5874), (42, 4895), (55, 3738), (66, 3115), (70, 2937), (77, 2670), (89, 2310), (105, 1958), (110, 1869), (154, 1335), (165, 1246), (178, 1155), (210, 979), (231, 890), (267, 770), (330, 623), (385, 534), (445, 462)]