28748440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102673}}^1$

素因数の和:102691

約数の個数: 32

約数和(自身を含む): 73925280

約数和(自身を除く): 45176840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102673, 205346, 410692, 513365, 718711, 821384, 1026730, 1437422, 2053460, 2874844, 3593555, 4106920, 5749688, 7187110, 14374220, 28748440]

約数ペア:

[(1, 28748440), (2, 14374220), (4, 7187110), (5, 5749688), (7, 4106920), (8, 3593555), (10, 2874844), (14, 2053460), (20, 1437422), (28, 1026730), (35, 821384), (40, 718711), (56, 513365), (70, 410692), (140, 205346), (280, 102673)]