18788840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67103}}^1$

素因数の和:67121

約数の個数: 32

約数和(自身を含む): 48314880

約数和(自身を除く): 29526040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67103, 134206, 268412, 335515, 469721, 536824, 671030, 939442, 1342060, 1878884, 2348605, 2684120, 3757768, 4697210, 9394420, 18788840]

約数ペア:

[(1, 18788840), (2, 9394420), (4, 4697210), (5, 3757768), (7, 2684120), (8, 2348605), (10, 1878884), (14, 1342060), (20, 939442), (28, 671030), (35, 536824), (40, 469721), (56, 335515), (70, 268412), (140, 134206), (280, 67103)]