19852840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1447}}^1$

素因数の和:1479

約数の個数: 64

約数和(自身を含む): 52128000

約数和(自身を除く): 32275160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1447, 1715, 1960, 2744, 2894, 3430, 5788, 6860, 7235, 10129, 11576, 13720, 14470, 20258, 28940, 40516, 50645, 57880, 70903, 81032, 101290, 141806, 202580, 283612, 354515, 405160, 496321, 567224, 709030, 992642, 1418060, 1985284, 2481605, 2836120, 3970568, 4963210, 9926420, 19852840]

約数ペア:

[(1, 19852840), (2, 9926420), (4, 4963210), (5, 3970568), (7, 2836120), (8, 2481605), (10, 1985284), (14, 1418060), (20, 992642), (28, 709030), (35, 567224), (40, 496321), (49, 405160), (56, 354515), (70, 283612), (98, 202580), (140, 141806), (196, 101290), (245, 81032), (280, 70903), (343, 57880), (392, 50645), (490, 40516), (686, 28940), (980, 20258), (1372, 14470), (1447, 13720), (1715, 11576), (1960, 10129), (2744, 7235), (2894, 6860), (3430, 5788)]