255255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:56

約数の個数: 64

約数和(自身を含む): 580608

約数和(自身を除く): 325353

約数列:

[1, 3, 5, 7, 11, 13, 15, 17, 21, 33, 35, 39, 51, 55, 65, 77, 85, 91, 105, 119, 143, 165, 187, 195, 221, 231, 255, 273, 357, 385, 429, 455, 561, 595, 663, 715, 935, 1001, 1105, 1155, 1309, 1365, 1547, 1785, 2145, 2431, 2805, 3003, 3315, 3927, 4641, 5005, 6545, 7293, 7735, 12155, 15015, 17017, 19635, 23205, 36465, 51051, 85085, 255255]

約数ペア:

[(1, 255255), (3, 85085), (5, 51051), (7, 36465), (11, 23205), (13, 19635), (15, 17017), (17, 15015), (21, 12155), (33, 7735), (35, 7293), (39, 6545), (51, 5005), (55, 4641), (65, 3927), (77, 3315), (85, 3003), (91, 2805), (105, 2431), (119, 2145), (143, 1785), (165, 1547), (187, 1365), (195, 1309), (221, 1155), (231, 1105), (255, 1001), (273, 935), (357, 715), (385, 663), (429, 595), (455, 561)]