280290426

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 622376832

約数和(自身を除く): 342086406

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 193, 258, 386, 433, 559, 579, 866, 1118, 1158, 1299, 1677, 2509, 2598, 3354, 5018, 5629, 7527, 8299, 11258, 15054, 16598, 16887, 18619, 24897, 33774, 37238, 49794, 55857, 83569, 107887, 111714, 167138, 215774, 242047, 250707, 323661, 484094, 501414, 647322, 726141, 1086397, 1452282, 2172794, 3259191, 3593467, 6518382, 7186934, 10780401, 21560802, 46715071, 93430142, 140145213, 280290426]

約数ペア:

[(1, 280290426), (2, 140145213), (3, 93430142), (6, 46715071), (13, 21560802), (26, 10780401), (39, 7186934), (43, 6518382), (78, 3593467), (86, 3259191), (129, 2172794), (193, 1452282), (258, 1086397), (386, 726141), (433, 647322), (559, 501414), (579, 484094), (866, 323661), (1118, 250707), (1158, 242047), (1299, 215774), (1677, 167138), (2509, 111714), (2598, 107887), (3354, 83569), (5018, 55857), (5629, 49794), (7527, 37238), (8299, 33774), (11258, 24897), (15054, 18619), (16598, 16887)]