257275264

素因数分解:

$2^7\times {\mathrm{389}}^1\times {\mathrm{5167}}^1$

素因数の和:5570

約数の個数: 32

約数和(自身を含む): 513957600

約数和(自身を除く): 256682336

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 389, 778, 1556, 3112, 5167, 6224, 10334, 12448, 20668, 24896, 41336, 49792, 82672, 165344, 330688, 661376, 2009963, 4019926, 8039852, 16079704, 32159408, 64318816, 128637632, 257275264]

約数ペア:

[(1, 257275264), (2, 128637632), (4, 64318816), (8, 32159408), (16, 16079704), (32, 8039852), (64, 4019926), (128, 2009963), (389, 661376), (778, 330688), (1556, 165344), (3112, 82672), (5167, 49792), (6224, 41336), (10334, 24896), (12448, 20668)]