28741120

素因数分解:

$2^9\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 80

約数和(自身を含む): 70218720

約数和(自身を除く): 41477600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 109, 128, 160, 206, 218, 256, 320, 412, 436, 512, 515, 545, 640, 824, 872, 1030, 1090, 1280, 1648, 1744, 2060, 2180, 2560, 3296, 3488, 4120, 4360, 6592, 6976, 8240, 8720, 11227, 13184, 13952, 16480, 17440, 22454, 26368, 27904, 32960, 34880, 44908, 52736, 55808, 56135, 65920, 69760, 89816, 112270, 131840, 139520, 179632, 224540, 263680, 279040, 359264, 449080, 718528, 898160, 1437056, 1796320, 2874112, 3592640, 5748224, 7185280, 14370560, 28741120]

約数ペア:

[(1, 28741120), (2, 14370560), (4, 7185280), (5, 5748224), (8, 3592640), (10, 2874112), (16, 1796320), (20, 1437056), (32, 898160), (40, 718528), (64, 449080), (80, 359264), (103, 279040), (109, 263680), (128, 224540), (160, 179632), (206, 139520), (218, 131840), (256, 112270), (320, 89816), (412, 69760), (436, 65920), (512, 56135), (515, 55808), (545, 52736), (640, 44908), (824, 34880), (872, 32960), (1030, 27904), (1090, 26368), (1280, 22454), (1648, 17440), (1744, 16480), (2060, 13952), (2180, 13184), (2560, 11227), (3296, 8720), (3488, 8240), (4120, 6976), (4360, 6592)]