256210724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1689

約数の個数: 72

約数和(自身を含む): 575581440

約数和(自身を除く): 319370716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 121, 154, 188, 242, 308, 329, 484, 517, 658, 847, 1034, 1316, 1609, 1694, 2068, 3218, 3388, 3619, 5687, 6436, 7238, 11263, 11374, 14476, 17699, 22526, 22748, 35398, 39809, 45052, 70796, 75623, 79618, 123893, 151246, 159236, 194689, 247786, 302492, 389378, 495572, 529361, 778756, 831853, 1058722, 1362823, 1663706, 2117444, 2725646, 3327412, 5451292, 5822971, 9150383, 11645942, 18300766, 23291884, 36601532, 64052681, 128105362, 256210724]

約数ペア:

[(1, 256210724), (2, 128105362), (4, 64052681), (7, 36601532), (11, 23291884), (14, 18300766), (22, 11645942), (28, 9150383), (44, 5822971), (47, 5451292), (77, 3327412), (94, 2725646), (121, 2117444), (154, 1663706), (188, 1362823), (242, 1058722), (308, 831853), (329, 778756), (484, 529361), (517, 495572), (658, 389378), (847, 302492), (1034, 247786), (1316, 194689), (1609, 159236), (1694, 151246), (2068, 123893), (3218, 79618), (3388, 75623), (3619, 70796), (5687, 45052), (6436, 39809), (7238, 35398), (11263, 22748), (11374, 22526), (14476, 17699)]