76981240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1303}}^1$

素因数の和:1532

約数の個数: 64

約数和(自身を含む): 199042560

約数和(自身を除く): 122061320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 844, 1055, 1303, 1477, 1688, 2110, 2606, 2954, 4220, 5212, 5908, 6515, 7385, 8440, 9121, 10424, 11816, 13030, 14770, 18242, 26060, 29540, 36484, 45605, 52120, 59080, 72968, 91210, 182420, 274933, 364840, 549866, 1099732, 1374665, 1924531, 2199464, 2749330, 3849062, 5498660, 7698124, 9622655, 10997320, 15396248, 19245310, 38490620, 76981240]

約数ペア:

[(1, 76981240), (2, 38490620), (4, 19245310), (5, 15396248), (7, 10997320), (8, 9622655), (10, 7698124), (14, 5498660), (20, 3849062), (28, 2749330), (35, 2199464), (40, 1924531), (56, 1374665), (70, 1099732), (140, 549866), (211, 364840), (280, 274933), (422, 182420), (844, 91210), (1055, 72968), (1303, 59080), (1477, 52120), (1688, 45605), (2110, 36484), (2606, 29540), (2954, 26060), (4220, 18242), (5212, 14770), (5908, 13030), (6515, 11816), (7385, 10424), (8440, 9121)]