78987860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{1303}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 190154496

約数和(自身を除く): 111166636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 433, 866, 1303, 1732, 2165, 2606, 3031, 4330, 5212, 6062, 6515, 8660, 9121, 12124, 13030, 15155, 18242, 26060, 30310, 36484, 45605, 60620, 91210, 182420, 564199, 1128398, 2256796, 2820995, 3949393, 5641990, 7898786, 11283980, 15797572, 19746965, 39493930, 78987860]

約数ペア:

[(1, 78987860), (2, 39493930), (4, 19746965), (5, 15797572), (7, 11283980), (10, 7898786), (14, 5641990), (20, 3949393), (28, 2820995), (35, 2256796), (70, 1128398), (140, 564199), (433, 182420), (866, 91210), (1303, 60620), (1732, 45605), (2165, 36484), (2606, 30310), (3031, 26060), (4330, 18242), (5212, 15155), (6062, 13030), (6515, 12124), (8660, 9121)]