19887616

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 27252224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 179, 217, 224, 248, 256, 358, 434, 448, 496, 512, 716, 868, 896, 992, 1253, 1432, 1736, 1792, 1984, 2506, 2864, 3472, 3584, 3968, 5012, 5549, 5728, 6944, 7936, 10024, 11098, 11456, 13888, 15872, 20048, 22196, 22912, 27776, 38843, 40096, 44392, 45824, 55552, 77686, 80192, 88784, 91648, 111104, 155372, 160384, 177568, 310744, 320768, 355136, 621488, 641536, 710272, 1242976, 1420544, 2485952, 2841088, 4971904, 9943808, 19887616]

約数ペア:

[(1, 19887616), (2, 9943808), (4, 4971904), (7, 2841088), (8, 2485952), (14, 1420544), (16, 1242976), (28, 710272), (31, 641536), (32, 621488), (56, 355136), (62, 320768), (64, 310744), (112, 177568), (124, 160384), (128, 155372), (179, 111104), (217, 91648), (224, 88784), (248, 80192), (256, 77686), (358, 55552), (434, 45824), (448, 44392), (496, 40096), (512, 38843), (716, 27776), (868, 22912), (896, 22196), (992, 20048), (1253, 15872), (1432, 13888), (1736, 11456), (1792, 11098), (1984, 10024), (2506, 7936), (2864, 6944), (3472, 5728), (3584, 5549), (3968, 5012)]