257787816

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2423}}^1$

素因数の和:2487

約数の個数: 128

約数和(自身を含む): 781885440

約数和(自身を除く): 524097624

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 31, 33, 39, 44, 52, 62, 66, 78, 88, 93, 104, 124, 132, 143, 156, 186, 248, 264, 286, 312, 341, 372, 403, 429, 572, 682, 744, 806, 858, 1023, 1144, 1209, 1364, 1612, 1716, 2046, 2418, 2423, 2728, 3224, 3432, 4092, 4433, 4836, 4846, 7269, 8184, 8866, 9672, 9692, 13299, 14538, 17732, 19384, 26598, 26653, 29076, 31499, 35464, 53196, 53306, 58152, 62998, 75113, 79959, 94497, 106392, 106612, 125996, 150226, 159918, 188994, 213224, 225339, 251992, 300452, 319836, 346489, 377988, 450678, 600904, 639672, 692978, 755976, 826243, 901356, 976469, 1039467, 1385956, 1652486, 1802712, 1952938, 2078934, 2478729, 2771912, 2929407, 3304972, 3905876, 4157868, 4957458, 5858814, 6609944, 7811752, 8315736, 9914916, 10741159, 11717628, 19829832, 21482318, 23435256, 32223477, 42964636, 64446954, 85929272, 128893908, 257787816]

約数ペア:

[(1, 257787816), (2, 128893908), (3, 85929272), (4, 64446954), (6, 42964636), (8, 32223477), (11, 23435256), (12, 21482318), (13, 19829832), (22, 11717628), (24, 10741159), (26, 9914916), (31, 8315736), (33, 7811752), (39, 6609944), (44, 5858814), (52, 4957458), (62, 4157868), (66, 3905876), (78, 3304972), (88, 2929407), (93, 2771912), (104, 2478729), (124, 2078934), (132, 1952938), (143, 1802712), (156, 1652486), (186, 1385956), (248, 1039467), (264, 976469), (286, 901356), (312, 826243), (341, 755976), (372, 692978), (403, 639672), (429, 600904), (572, 450678), (682, 377988), (744, 346489), (806, 319836), (858, 300452), (1023, 251992), (1144, 225339), (1209, 213224), (1364, 188994), (1612, 159918), (1716, 150226), (2046, 125996), (2418, 106612), (2423, 106392), (2728, 94497), (3224, 79959), (3432, 75113), (4092, 62998), (4433, 58152), (4836, 53306), (4846, 53196), (7269, 35464), (8184, 31499), (8866, 29076), (9672, 26653), (9692, 26598), (13299, 19384), (14538, 17732)]