28542920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101939}}^1$

素因数の和:101957

約数の個数: 32

約数和(自身を含む): 73396800

約数和(自身を除く): 44853880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101939, 203878, 407756, 509695, 713573, 815512, 1019390, 1427146, 2038780, 2854292, 3567865, 4077560, 5708584, 7135730, 14271460, 28542920]

約数ペア:

[(1, 28542920), (2, 14271460), (4, 7135730), (5, 5708584), (7, 4077560), (8, 3567865), (10, 2854292), (14, 2038780), (20, 1427146), (28, 1019390), (35, 815512), (40, 713573), (56, 509695), (70, 407756), (140, 203878), (280, 101939)]