28248876

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 75435360

約数和(自身を除く): 47186484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 109, 138, 207, 218, 276, 313, 327, 414, 436, 626, 654, 828, 939, 981, 1252, 1308, 1878, 1962, 2507, 2817, 3756, 3924, 5014, 5634, 7199, 7521, 10028, 11268, 14398, 15042, 21597, 22563, 28796, 30084, 34117, 43194, 45126, 64791, 68234, 86388, 90252, 102351, 129582, 136468, 204702, 259164, 307053, 409404, 614106, 784691, 1228212, 1569382, 2354073, 3138764, 4708146, 7062219, 9416292, 14124438, 28248876]

約数ペア:

[(1, 28248876), (2, 14124438), (3, 9416292), (4, 7062219), (6, 4708146), (9, 3138764), (12, 2354073), (18, 1569382), (23, 1228212), (36, 784691), (46, 614106), (69, 409404), (92, 307053), (109, 259164), (138, 204702), (207, 136468), (218, 129582), (276, 102351), (313, 90252), (327, 86388), (414, 68234), (436, 64791), (626, 45126), (654, 43194), (828, 34117), (939, 30084), (981, 28796), (1252, 22563), (1308, 21597), (1878, 15042), (1962, 14398), (2507, 11268), (2817, 10028), (3756, 7521), (3924, 7199), (5014, 5634)]