83756840

素因数分解:

$2^3\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{1607}}^1$

素因数の和:2921

約数の個数: 32

約数和(自身を含む): 188714880

約数和(自身を除く): 104958040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1303, 1607, 2606, 3214, 5212, 6428, 6515, 8035, 10424, 12856, 13030, 16070, 26060, 32140, 52120, 64280, 2093921, 4187842, 8375684, 10469605, 16751368, 20939210, 41878420, 83756840]

約数ペア:

[(1, 83756840), (2, 41878420), (4, 20939210), (5, 16751368), (8, 10469605), (10, 8375684), (20, 4187842), (40, 2093921), (1303, 64280), (1607, 52120), (2606, 32140), (3214, 26060), (5212, 16070), (6428, 13030), (6515, 12856), (8035, 10424)]