208739888

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 479255040

約数和(自身を除く): 270515152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 89, 112, 172, 178, 301, 344, 356, 487, 602, 623, 688, 712, 974, 1204, 1246, 1424, 1948, 2408, 2492, 3409, 3827, 3896, 4816, 4984, 6818, 7654, 7792, 9968, 13636, 15308, 20941, 26789, 27272, 30616, 41882, 43343, 53578, 54544, 61232, 83764, 86686, 107156, 146587, 167528, 173372, 214312, 293174, 303401, 335056, 346744, 428624, 586348, 606802, 693488, 1172696, 1213604, 1863749, 2345392, 2427208, 3727498, 4854416, 7454996, 13046243, 14909992, 26092486, 29819984, 52184972, 104369944, 208739888]

約数ペア:

[(1, 208739888), (2, 104369944), (4, 52184972), (7, 29819984), (8, 26092486), (14, 14909992), (16, 13046243), (28, 7454996), (43, 4854416), (56, 3727498), (86, 2427208), (89, 2345392), (112, 1863749), (172, 1213604), (178, 1172696), (301, 693488), (344, 606802), (356, 586348), (487, 428624), (602, 346744), (623, 335056), (688, 303401), (712, 293174), (974, 214312), (1204, 173372), (1246, 167528), (1424, 146587), (1948, 107156), (2408, 86686), (2492, 83764), (3409, 61232), (3827, 54544), (3896, 53578), (4816, 43343), (4984, 41882), (6818, 30616), (7654, 27272), (7792, 26789), (9968, 20941), (13636, 15308)]