20078272

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 56

約数和(自身を含む): 41889680

約数和(自身を除く): 21811408

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 64, 74, 122, 139, 148, 244, 278, 296, 488, 556, 592, 976, 1112, 1184, 1952, 2224, 2257, 2368, 3904, 4448, 4514, 5143, 8479, 8896, 9028, 10286, 16958, 18056, 20572, 33916, 36112, 41144, 67832, 72224, 82288, 135664, 144448, 164576, 271328, 313723, 329152, 542656, 627446, 1254892, 2509784, 5019568, 10039136, 20078272]

約数ペア:

[(1, 20078272), (2, 10039136), (4, 5019568), (8, 2509784), (16, 1254892), (32, 627446), (37, 542656), (61, 329152), (64, 313723), (74, 271328), (122, 164576), (139, 144448), (148, 135664), (244, 82288), (278, 72224), (296, 67832), (488, 41144), (556, 36112), (592, 33916), (976, 20572), (1112, 18056), (1184, 16958), (1952, 10286), (2224, 9028), (2257, 8896), (2368, 8479), (3904, 5143), (4448, 4514)]