258361688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 543621120

約数和(自身を除く): 285259432

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 127, 248, 254, 403, 508, 631, 806, 1016, 1262, 1612, 1651, 2524, 3224, 3302, 3937, 5048, 6604, 7874, 8203, 13208, 15748, 16406, 19561, 31496, 32812, 39122, 51181, 65624, 78244, 80137, 102362, 156488, 160274, 204724, 254293, 320548, 409448, 508586, 641096, 1017172, 1041781, 2034344, 2083562, 2484247, 4167124, 4968494, 8334248, 9936988, 19873976, 32295211, 64590422, 129180844, 258361688]

約数ペア:

[(1, 258361688), (2, 129180844), (4, 64590422), (8, 32295211), (13, 19873976), (26, 9936988), (31, 8334248), (52, 4968494), (62, 4167124), (104, 2484247), (124, 2083562), (127, 2034344), (248, 1041781), (254, 1017172), (403, 641096), (508, 508586), (631, 409448), (806, 320548), (1016, 254293), (1262, 204724), (1612, 160274), (1651, 156488), (2524, 102362), (3224, 80137), (3302, 78244), (3937, 65624), (5048, 51181), (6604, 39122), (7874, 32812), (8203, 31496), (13208, 19561), (15748, 16406)]