18789400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13421}}^1$

素因数の和:13444

約数の個数: 48

約数和(自身を含む): 49929840

約数和(自身を除く): 31140440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 13421, 26842, 53684, 67105, 93947, 107368, 134210, 187894, 268420, 335525, 375788, 469735, 536840, 671050, 751576, 939470, 1342100, 1878940, 2348675, 2684200, 3757880, 4697350, 9394700, 18789400]

約数ペア:

[(1, 18789400), (2, 9394700), (4, 4697350), (5, 3757880), (7, 2684200), (8, 2348675), (10, 1878940), (14, 1342100), (20, 939470), (25, 751576), (28, 671050), (35, 536840), (40, 469735), (50, 375788), (56, 335525), (70, 268420), (100, 187894), (140, 134210), (175, 107368), (200, 93947), (280, 67105), (350, 53684), (700, 26842), (1400, 13421)]