215125456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2180

約数の個数: 80

約数和(自身を含む): 520466688

約数和(自身を除く): 305341232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 71, 91, 104, 112, 142, 182, 208, 284, 364, 497, 568, 728, 923, 994, 1136, 1456, 1846, 1988, 2081, 3692, 3976, 4162, 6461, 7384, 7952, 8324, 12922, 14567, 14768, 16648, 25844, 27053, 29134, 33296, 51688, 54106, 58268, 103376, 108212, 116536, 147751, 189371, 216424, 233072, 295502, 378742, 432848, 591004, 757484, 1034257, 1182008, 1514968, 1920763, 2068514, 2364016, 3029936, 3841526, 4137028, 7683052, 8274056, 13445341, 15366104, 16548112, 26890682, 30732208, 53781364, 107562728, 215125456]

約数ペア:

[(1, 215125456), (2, 107562728), (4, 53781364), (7, 30732208), (8, 26890682), (13, 16548112), (14, 15366104), (16, 13445341), (26, 8274056), (28, 7683052), (52, 4137028), (56, 3841526), (71, 3029936), (91, 2364016), (104, 2068514), (112, 1920763), (142, 1514968), (182, 1182008), (208, 1034257), (284, 757484), (364, 591004), (497, 432848), (568, 378742), (728, 295502), (923, 233072), (994, 216424), (1136, 189371), (1456, 147751), (1846, 116536), (1988, 108212), (2081, 103376), (3692, 58268), (3976, 54106), (4162, 51688), (6461, 33296), (7384, 29134), (7952, 27053), (8324, 25844), (12922, 16648), (14567, 14768)]