221369680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{395303}}^1$

素因数の和:395323

約数の個数: 40

約数和(自身を含む): 588212352

約数和(自身を除く): 366842672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 395303, 790606, 1581212, 1976515, 2767121, 3162424, 3953030, 5534242, 6324848, 7906060, 11068484, 13835605, 15812120, 22136968, 27671210, 31624240, 44273936, 55342420, 110684840, 221369680]

約数ペア:

[(1, 221369680), (2, 110684840), (4, 55342420), (5, 44273936), (7, 31624240), (8, 27671210), (10, 22136968), (14, 15812120), (16, 13835605), (20, 11068484), (28, 7906060), (35, 6324848), (40, 5534242), (56, 3953030), (70, 3162424), (80, 2767121), (112, 1976515), (140, 1581212), (280, 790606), (560, 395303)]