66820864

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 148271760

約数和(自身を除く): 81450896

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 122, 128, 176, 244, 256, 352, 389, 488, 671, 704, 778, 976, 1342, 1408, 1556, 1952, 2684, 2816, 3112, 3904, 4279, 5368, 6224, 7808, 8558, 10736, 12448, 15616, 17116, 21472, 23729, 24896, 34232, 42944, 47458, 49792, 68464, 85888, 94916, 99584, 136928, 171776, 189832, 261019, 273856, 379664, 522038, 547712, 759328, 1044076, 1095424, 1518656, 2088152, 3037312, 4176304, 6074624, 8352608, 16705216, 33410432, 66820864]

約数ペア:

[(1, 66820864), (2, 33410432), (4, 16705216), (8, 8352608), (11, 6074624), (16, 4176304), (22, 3037312), (32, 2088152), (44, 1518656), (61, 1095424), (64, 1044076), (88, 759328), (122, 547712), (128, 522038), (176, 379664), (244, 273856), (256, 261019), (352, 189832), (389, 171776), (488, 136928), (671, 99584), (704, 94916), (778, 85888), (976, 68464), (1342, 49792), (1408, 47458), (1556, 42944), (1952, 34232), (2684, 24896), (2816, 23729), (3112, 21472), (3904, 17116), (4279, 15616), (5368, 12448), (6224, 10736), (7808, 8558)]