257138336

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:646

約数の個数: 96

約数和(自身を含む): 627419520

約数和(自身を除く): 370281184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 227, 364, 389, 416, 454, 728, 778, 908, 1456, 1556, 1589, 1816, 2723, 2912, 2951, 3112, 3178, 3632, 5057, 5446, 5902, 6224, 6356, 7264, 10114, 10892, 11804, 12448, 12712, 20228, 20657, 21784, 23608, 25424, 35399, 40456, 41314, 43568, 47216, 50848, 70798, 80912, 82628, 87136, 88303, 94432, 141596, 161824, 165256, 176606, 283192, 330512, 353212, 566384, 618121, 661024, 706424, 1132768, 1147939, 1236242, 1412848, 2295878, 2472484, 2825696, 4591756, 4944968, 8035573, 9183512, 9889936, 16071146, 18367024, 19779872, 32142292, 36734048, 64284584, 128569168, 257138336]

約数ペア:

[(1, 257138336), (2, 128569168), (4, 64284584), (7, 36734048), (8, 32142292), (13, 19779872), (14, 18367024), (16, 16071146), (26, 9889936), (28, 9183512), (32, 8035573), (52, 4944968), (56, 4591756), (91, 2825696), (104, 2472484), (112, 2295878), (182, 1412848), (208, 1236242), (224, 1147939), (227, 1132768), (364, 706424), (389, 661024), (416, 618121), (454, 566384), (728, 353212), (778, 330512), (908, 283192), (1456, 176606), (1556, 165256), (1589, 161824), (1816, 141596), (2723, 94432), (2912, 88303), (2951, 87136), (3112, 82628), (3178, 80912), (3632, 70798), (5057, 50848), (5446, 47216), (5902, 43568), (6224, 41314), (6356, 40456), (7264, 35399), (10114, 25424), (10892, 23608), (11804, 21784), (12448, 20657), (12712, 20228)]