21754880

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{607}}^1$

素因数の和:639

約数の個数: 88

約数和(自身を含む): 59739648

約数和(自身を除く): 37984768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 607, 640, 896, 1024, 1120, 1214, 1280, 1792, 2240, 2428, 2560, 3035, 3584, 4249, 4480, 4856, 5120, 6070, 7168, 8498, 8960, 9712, 12140, 16996, 17920, 19424, 21245, 24280, 33992, 35840, 38848, 42490, 48560, 67984, 77696, 84980, 97120, 135968, 155392, 169960, 194240, 271936, 310784, 339920, 388480, 543872, 621568, 679840, 776960, 1087744, 1359680, 1553920, 2175488, 2719360, 3107840, 4350976, 5438720, 10877440, 21754880]

約数ペア:

[(1, 21754880), (2, 10877440), (4, 5438720), (5, 4350976), (7, 3107840), (8, 2719360), (10, 2175488), (14, 1553920), (16, 1359680), (20, 1087744), (28, 776960), (32, 679840), (35, 621568), (40, 543872), (56, 388480), (64, 339920), (70, 310784), (80, 271936), (112, 194240), (128, 169960), (140, 155392), (160, 135968), (224, 97120), (256, 84980), (280, 77696), (320, 67984), (448, 48560), (512, 42490), (560, 38848), (607, 35840), (640, 33992), (896, 24280), (1024, 21245), (1120, 19424), (1214, 17920), (1280, 16996), (1792, 12140), (2240, 9712), (2428, 8960), (2560, 8498), (3035, 7168), (3584, 6070), (4249, 5120), (4480, 4856)]