398976448

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{499}}^1$

素因数の和:586

約数の個数: 84

約数和(自身を含む): 882777000

約数和(自身を除く): 483800552

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 208, 248, 403, 416, 496, 499, 806, 832, 961, 992, 998, 1612, 1922, 1984, 1996, 3224, 3844, 3992, 6448, 6487, 7688, 7984, 12493, 12896, 12974, 15376, 15469, 15968, 24986, 25792, 25948, 30752, 30938, 31936, 49972, 51896, 61504, 61876, 99944, 103792, 123752, 199888, 201097, 207584, 247504, 399776, 402194, 415168, 479539, 495008, 799552, 804388, 959078, 990016, 1608776, 1918156, 3217552, 3836312, 6234007, 6435104, 7672624, 12468014, 12870208, 15345248, 24936028, 30690496, 49872056, 99744112, 199488224, 398976448]

約数ペア:

[(1, 398976448), (2, 199488224), (4, 99744112), (8, 49872056), (13, 30690496), (16, 24936028), (26, 15345248), (31, 12870208), (32, 12468014), (52, 7672624), (62, 6435104), (64, 6234007), (104, 3836312), (124, 3217552), (208, 1918156), (248, 1608776), (403, 990016), (416, 959078), (496, 804388), (499, 799552), (806, 495008), (832, 479539), (961, 415168), (992, 402194), (998, 399776), (1612, 247504), (1922, 207584), (1984, 201097), (1996, 199888), (3224, 123752), (3844, 103792), (3992, 99944), (6448, 61876), (6487, 61504), (7688, 51896), (7984, 49972), (12493, 31936), (12896, 30938), (12974, 30752), (15376, 25948), (15469, 25792), (15968, 24986)]