19849040

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5279}}^1$

素因数の和:5339

約数の個数: 40

約数和(自身を含む): 47139840

約数和(自身を除く): 27290800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5279, 10558, 21116, 26395, 42232, 52790, 84464, 105580, 211160, 248113, 422320, 496226, 992452, 1240565, 1984904, 2481130, 3969808, 4962260, 9924520, 19849040]

約数ペア:

[(1, 19849040), (2, 9924520), (4, 4962260), (5, 3969808), (8, 2481130), (10, 1984904), (16, 1240565), (20, 992452), (40, 496226), (47, 422320), (80, 248113), (94, 211160), (188, 105580), (235, 84464), (376, 52790), (470, 42232), (752, 26395), (940, 21116), (1880, 10558), (3760, 5279)]