28103992

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 65085120

約数和(自身を除く): 36981128

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 53, 56, 68, 106, 119, 136, 212, 238, 371, 424, 476, 557, 742, 901, 952, 1114, 1484, 1802, 2228, 2968, 3604, 3899, 4456, 6307, 7208, 7798, 9469, 12614, 15596, 18938, 25228, 29521, 31192, 37876, 50456, 59042, 66283, 75752, 118084, 132566, 206647, 236168, 265132, 413294, 501857, 530264, 826588, 1003714, 1653176, 2007428, 3512999, 4014856, 7025998, 14051996, 28103992]

約数ペア:

[(1, 28103992), (2, 14051996), (4, 7025998), (7, 4014856), (8, 3512999), (14, 2007428), (17, 1653176), (28, 1003714), (34, 826588), (53, 530264), (56, 501857), (68, 413294), (106, 265132), (119, 236168), (136, 206647), (212, 132566), (238, 118084), (371, 75752), (424, 66283), (476, 59042), (557, 50456), (742, 37876), (901, 31192), (952, 29521), (1114, 25228), (1484, 18938), (1802, 15596), (2228, 12614), (2968, 9469), (3604, 7798), (3899, 7208), (4456, 6307)]