219851008

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2191

約数の個数: 72

約数和(自身を含む): 488074496

約数和(自身を除く): 268223488

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 2131, 3224, 3328, 3968, 4262, 6448, 7936, 8524, 12896, 17048, 25792, 27703, 34096, 51584, 55406, 66061, 68192, 103168, 110812, 132122, 136384, 221624, 264244, 272768, 443248, 528488, 545536, 858793, 886496, 1056976, 1717586, 1772992, 2113952, 3435172, 3545984, 4227904, 6870344, 7091968, 8455808, 13740688, 16911616, 27481376, 54962752, 109925504, 219851008]

約数ペア:

[(1, 219851008), (2, 109925504), (4, 54962752), (8, 27481376), (13, 16911616), (16, 13740688), (26, 8455808), (31, 7091968), (32, 6870344), (52, 4227904), (62, 3545984), (64, 3435172), (104, 2113952), (124, 1772992), (128, 1717586), (208, 1056976), (248, 886496), (256, 858793), (403, 545536), (416, 528488), (496, 443248), (806, 272768), (832, 264244), (992, 221624), (1612, 136384), (1664, 132122), (1984, 110812), (2131, 103168), (3224, 68192), (3328, 66061), (3968, 55406), (4262, 51584), (6448, 34096), (7936, 27703), (8524, 25792), (12896, 17048)]