645657376

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{221723}}^1$

素因数の和:221753

約数の個数: 48

約数和(自身を含む): 1564484544

約数和(自身を除く): 918827168

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 221723, 443446, 886892, 1552061, 1773784, 2882399, 3104122, 3547568, 5764798, 6208244, 7095136, 11529596, 12416488, 20176793, 23059192, 24832976, 40353586, 46118384, 49665952, 80707172, 92236768, 161414344, 322828688, 645657376]

約数ペア:

[(1, 645657376), (2, 322828688), (4, 161414344), (7, 92236768), (8, 80707172), (13, 49665952), (14, 46118384), (16, 40353586), (26, 24832976), (28, 23059192), (32, 20176793), (52, 12416488), (56, 11529596), (91, 7095136), (104, 6208244), (112, 5764798), (182, 3547568), (208, 3104122), (224, 2882399), (364, 1773784), (416, 1552061), (728, 886892), (1456, 443446), (2912, 221723)]