254569458

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 128

約数和(自身を含む): 654925824

約数和(自身を除く): 400356366

約数列:

[1, 2, 3, 6, 11, 13, 17, 22, 26, 31, 33, 34, 39, 51, 62, 66, 78, 93, 102, 143, 186, 187, 221, 286, 341, 374, 403, 429, 442, 527, 561, 563, 663, 682, 806, 858, 1023, 1054, 1122, 1126, 1209, 1326, 1581, 1689, 2046, 2418, 2431, 3162, 3378, 4433, 4862, 5797, 6193, 6851, 7293, 7319, 8866, 9571, 11594, 12386, 13299, 13702, 14586, 14638, 17391, 17453, 18579, 19142, 20553, 21957, 26598, 28713, 34782, 34906, 37158, 41106, 43914, 52359, 57426, 75361, 80509, 104718, 105281, 124423, 150722, 161018, 191983, 210562, 226083, 226889, 241527, 248846, 296701, 315843, 373269, 383966, 452166, 453778, 483054, 575949, 593402, 631686, 680667, 746538, 890103, 1151898, 1361334, 1368653, 1780206, 2495779, 2737306, 3263711, 3857113, 4105959, 4991558, 6527422, 7487337, 7714226, 8211918, 9791133, 11571339, 14974674, 19582266, 23142678, 42428243, 84856486, 127284729, 254569458]

約数ペア:

[(1, 254569458), (2, 127284729), (3, 84856486), (6, 42428243), (11, 23142678), (13, 19582266), (17, 14974674), (22, 11571339), (26, 9791133), (31, 8211918), (33, 7714226), (34, 7487337), (39, 6527422), (51, 4991558), (62, 4105959), (66, 3857113), (78, 3263711), (93, 2737306), (102, 2495779), (143, 1780206), (186, 1368653), (187, 1361334), (221, 1151898), (286, 890103), (341, 746538), (374, 680667), (403, 631686), (429, 593402), (442, 575949), (527, 483054), (561, 453778), (563, 452166), (663, 383966), (682, 373269), (806, 315843), (858, 296701), (1023, 248846), (1054, 241527), (1122, 226889), (1126, 226083), (1209, 210562), (1326, 191983), (1581, 161018), (1689, 150722), (2046, 124423), (2418, 105281), (2431, 104718), (3162, 80509), (3378, 75361), (4433, 57426), (4862, 52359), (5797, 43914), (6193, 41106), (6851, 37158), (7293, 34906), (7319, 34782), (8866, 28713), (9571, 26598), (11594, 21957), (12386, 20553), (13299, 19142), (13702, 18579), (14586, 17453), (14638, 17391)]