20351744

素因数分解:

$2^8\times 7^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 47731488

約数和(自身を除く): 27379744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 277, 287, 328, 448, 554, 574, 656, 896, 1108, 1148, 1312, 1792, 1939, 2216, 2296, 2624, 3878, 4432, 4592, 5248, 7756, 8864, 9184, 10496, 11357, 15512, 17728, 18368, 22714, 31024, 35456, 36736, 45428, 62048, 70912, 73472, 79499, 90856, 124096, 158998, 181712, 248192, 317996, 363424, 496384, 635992, 726848, 1271984, 1453696, 2543968, 2907392, 5087936, 10175872, 20351744]

約数ペア:

[(1, 20351744), (2, 10175872), (4, 5087936), (7, 2907392), (8, 2543968), (14, 1453696), (16, 1271984), (28, 726848), (32, 635992), (41, 496384), (56, 363424), (64, 317996), (82, 248192), (112, 181712), (128, 158998), (164, 124096), (224, 90856), (256, 79499), (277, 73472), (287, 70912), (328, 62048), (448, 45428), (554, 36736), (574, 35456), (656, 31024), (896, 22714), (1108, 18368), (1148, 17728), (1312, 15512), (1792, 11357), (1939, 10496), (2216, 9184), (2296, 8864), (2624, 7756), (3878, 5248), (4432, 4592)]