55123456

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 80

約数和(自身を含む): 119420928

約数和(自身を除く): 64297472

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 64, 92, 124, 128, 151, 184, 248, 256, 302, 368, 496, 512, 604, 713, 736, 992, 1208, 1426, 1472, 1984, 2416, 2852, 2944, 3473, 3968, 4681, 4832, 5704, 5888, 6946, 7936, 9362, 9664, 11408, 11776, 13892, 15872, 18724, 19328, 22816, 27784, 37448, 38656, 45632, 55568, 74896, 77312, 91264, 107663, 111136, 149792, 182528, 215326, 222272, 299584, 365056, 430652, 444544, 599168, 861304, 889088, 1198336, 1722608, 1778176, 2396672, 3445216, 6890432, 13780864, 27561728, 55123456]

約数ペア:

[(1, 55123456), (2, 27561728), (4, 13780864), (8, 6890432), (16, 3445216), (23, 2396672), (31, 1778176), (32, 1722608), (46, 1198336), (62, 889088), (64, 861304), (92, 599168), (124, 444544), (128, 430652), (151, 365056), (184, 299584), (248, 222272), (256, 215326), (302, 182528), (368, 149792), (496, 111136), (512, 107663), (604, 91264), (713, 77312), (736, 74896), (992, 55568), (1208, 45632), (1426, 38656), (1472, 37448), (1984, 27784), (2416, 22816), (2852, 19328), (2944, 18724), (3473, 15872), (3968, 13892), (4681, 11776), (4832, 11408), (5704, 9664), (5888, 9362), (6946, 7936)]