28717808

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 66781440

約数和(自身を除く): 38063632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 67, 86, 89, 112, 134, 172, 178, 268, 301, 344, 356, 469, 536, 602, 623, 688, 712, 938, 1072, 1204, 1246, 1424, 1876, 2408, 2492, 2881, 3752, 3827, 4816, 4984, 5762, 5963, 7504, 7654, 9968, 11524, 11926, 15308, 20167, 23048, 23852, 26789, 30616, 40334, 41741, 46096, 47704, 53578, 61232, 80668, 83482, 95408, 107156, 161336, 166964, 214312, 256409, 322672, 333928, 428624, 512818, 667856, 1025636, 1794863, 2051272, 3589726, 4102544, 7179452, 14358904, 28717808]

約数ペア:

[(1, 28717808), (2, 14358904), (4, 7179452), (7, 4102544), (8, 3589726), (14, 2051272), (16, 1794863), (28, 1025636), (43, 667856), (56, 512818), (67, 428624), (86, 333928), (89, 322672), (112, 256409), (134, 214312), (172, 166964), (178, 161336), (268, 107156), (301, 95408), (344, 83482), (356, 80668), (469, 61232), (536, 53578), (602, 47704), (623, 46096), (688, 41741), (712, 40334), (938, 30616), (1072, 26789), (1204, 23852), (1246, 23048), (1424, 20167), (1876, 15308), (2408, 11926), (2492, 11524), (2881, 9968), (3752, 7654), (3827, 7504), (4816, 5963), (4984, 5762)]