28729456

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 68567040

約数和(自身を除く): 39837584

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 79, 112, 119, 136, 158, 191, 238, 272, 316, 382, 476, 553, 632, 764, 952, 1106, 1264, 1337, 1343, 1528, 1904, 2212, 2674, 2686, 3056, 3247, 4424, 5348, 5372, 6494, 8848, 9401, 10696, 10744, 12988, 15089, 18802, 21392, 21488, 22729, 25976, 30178, 37604, 45458, 51952, 60356, 75208, 90916, 105623, 120712, 150416, 181832, 211246, 241424, 256513, 363664, 422492, 513026, 844984, 1026052, 1689968, 1795591, 2052104, 3591182, 4104208, 7182364, 14364728, 28729456]

約数ペア:

[(1, 28729456), (2, 14364728), (4, 7182364), (7, 4104208), (8, 3591182), (14, 2052104), (16, 1795591), (17, 1689968), (28, 1026052), (34, 844984), (56, 513026), (68, 422492), (79, 363664), (112, 256513), (119, 241424), (136, 211246), (158, 181832), (191, 150416), (238, 120712), (272, 105623), (316, 90916), (382, 75208), (476, 60356), (553, 51952), (632, 45458), (764, 37604), (952, 30178), (1106, 25976), (1264, 22729), (1337, 21488), (1343, 21392), (1528, 18802), (1904, 15089), (2212, 12988), (2674, 10744), (2686, 10696), (3056, 9401), (3247, 8848), (4424, 6494), (5348, 5372)]