31074820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 78053976

約数和(自身を除く): 46979156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 857, 980, 1036, 1295, 1714, 1813, 2590, 3428, 3626, 4285, 5180, 5999, 7252, 8570, 9065, 11998, 17140, 18130, 23996, 29995, 31709, 36260, 41993, 59990, 63418, 83986, 119980, 126836, 158545, 167972, 209965, 221963, 317090, 419930, 443926, 634180, 839860, 887852, 1109815, 1553741, 2219630, 3107482, 4439260, 6214964, 7768705, 15537410, 31074820]

約数ペア:

[(1, 31074820), (2, 15537410), (4, 7768705), (5, 6214964), (7, 4439260), (10, 3107482), (14, 2219630), (20, 1553741), (28, 1109815), (35, 887852), (37, 839860), (49, 634180), (70, 443926), (74, 419930), (98, 317090), (140, 221963), (148, 209965), (185, 167972), (196, 158545), (245, 126836), (259, 119980), (370, 83986), (490, 63418), (518, 59990), (740, 41993), (857, 36260), (980, 31709), (1036, 29995), (1295, 23996), (1714, 18130), (1813, 17140), (2590, 11998), (3428, 9065), (3626, 8570), (4285, 7252), (5180, 5999)]