2156840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{7703}}^1$

素因数の和:7721

約数の個数: 32

約数和(自身を含む): 5546880

約数和(自身を除く): 3390040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 7703, 15406, 30812, 38515, 53921, 61624, 77030, 107842, 154060, 215684, 269605, 308120, 431368, 539210, 1078420, 2156840]

約数ペア:

[(1, 2156840), (2, 1078420), (4, 539210), (5, 431368), (7, 308120), (8, 269605), (10, 215684), (14, 154060), (20, 107842), (28, 77030), (35, 61624), (40, 53921), (56, 38515), (70, 30812), (140, 15406), (280, 7703)]