28538384

素因数分解:

$2^4\times 7^2\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:520

約数の個数: 60

約数和(自身を含む): 65202300

約数和(自身を除く): 36663916

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 89, 98, 112, 178, 196, 356, 392, 409, 623, 712, 784, 818, 1246, 1424, 1636, 2492, 2863, 3272, 4361, 4984, 5726, 6544, 8722, 9968, 11452, 17444, 20041, 22904, 34888, 36401, 40082, 45808, 69776, 72802, 80164, 145604, 160328, 254807, 291208, 320656, 509614, 582416, 1019228, 1783649, 2038456, 3567298, 4076912, 7134596, 14269192, 28538384]

約数ペア:

[(1, 28538384), (2, 14269192), (4, 7134596), (7, 4076912), (8, 3567298), (14, 2038456), (16, 1783649), (28, 1019228), (49, 582416), (56, 509614), (89, 320656), (98, 291208), (112, 254807), (178, 160328), (196, 145604), (356, 80164), (392, 72802), (409, 69776), (623, 45808), (712, 40082), (784, 36401), (818, 34888), (1246, 22904), (1424, 20041), (1636, 17444), (2492, 11452), (2863, 9968), (3272, 8722), (4361, 6544), (4984, 5726)]