20191488

素因数分解:

$2^8\times 3^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 54746496

約数和(自身を除く): 34555008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 96, 122, 128, 183, 192, 244, 256, 366, 384, 431, 488, 732, 768, 862, 976, 1293, 1464, 1724, 1952, 2586, 2928, 3448, 3904, 5172, 5856, 6896, 7808, 10344, 11712, 13792, 15616, 20688, 23424, 26291, 27584, 41376, 46848, 52582, 55168, 78873, 82752, 105164, 110336, 157746, 165504, 210328, 315492, 331008, 420656, 630984, 841312, 1261968, 1682624, 2523936, 3365248, 5047872, 6730496, 10095744, 20191488]

約数ペア:

[(1, 20191488), (2, 10095744), (3, 6730496), (4, 5047872), (6, 3365248), (8, 2523936), (12, 1682624), (16, 1261968), (24, 841312), (32, 630984), (48, 420656), (61, 331008), (64, 315492), (96, 210328), (122, 165504), (128, 157746), (183, 110336), (192, 105164), (244, 82752), (256, 78873), (366, 55168), (384, 52582), (431, 46848), (488, 41376), (732, 27584), (768, 26291), (862, 23424), (976, 20688), (1293, 15616), (1464, 13792), (1724, 11712), (1952, 10344), (2586, 7808), (2928, 6896), (3448, 5856), (3904, 5172)]