28579840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2791}}^1$

素因数の和:2818

約数の個数: 48

約数和(自身を含む): 68599440

約数和(自身を除く): 40019600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 2791, 5120, 5582, 10240, 11164, 13955, 22328, 27910, 44656, 55820, 89312, 111640, 178624, 223280, 357248, 446560, 714496, 893120, 1428992, 1786240, 2857984, 3572480, 5715968, 7144960, 14289920, 28579840]

約数ペア:

[(1, 28579840), (2, 14289920), (4, 7144960), (5, 5715968), (8, 3572480), (10, 2857984), (16, 1786240), (20, 1428992), (32, 893120), (40, 714496), (64, 446560), (80, 357248), (128, 223280), (160, 178624), (256, 111640), (320, 89312), (512, 55820), (640, 44656), (1024, 27910), (1280, 22328), (2048, 13955), (2560, 11164), (2791, 10240), (5120, 5582)]