28856380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3889}}^1$

素因数の和:3958

約数の個数: 48

約数和(自身を含む): 70580160

約数和(自身を除く): 41723780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 3889, 7420, 7778, 15556, 19445, 27223, 38890, 54446, 77780, 108892, 136115, 206117, 272230, 412234, 544460, 824468, 1030585, 1442819, 2061170, 2885638, 4122340, 5771276, 7214095, 14428190, 28856380]

約数ペア:

[(1, 28856380), (2, 14428190), (4, 7214095), (5, 5771276), (7, 4122340), (10, 2885638), (14, 2061170), (20, 1442819), (28, 1030585), (35, 824468), (53, 544460), (70, 412234), (106, 272230), (140, 206117), (212, 136115), (265, 108892), (371, 77780), (530, 54446), (742, 38890), (1060, 27223), (1484, 19445), (1855, 15556), (3710, 7778), (3889, 7420)]