31671040

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 76895280

約数和(自身を除く): 45224240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 227, 256, 320, 436, 454, 545, 640, 872, 908, 1090, 1135, 1280, 1744, 1816, 2180, 2270, 3488, 3632, 4360, 4540, 6976, 7264, 8720, 9080, 13952, 14528, 17440, 18160, 24743, 27904, 29056, 34880, 36320, 49486, 58112, 69760, 72640, 98972, 123715, 139520, 145280, 197944, 247430, 290560, 395888, 494860, 791776, 989720, 1583552, 1979440, 3167104, 3958880, 6334208, 7917760, 15835520, 31671040]

約数ペア:

[(1, 31671040), (2, 15835520), (4, 7917760), (5, 6334208), (8, 3958880), (10, 3167104), (16, 1979440), (20, 1583552), (32, 989720), (40, 791776), (64, 494860), (80, 395888), (109, 290560), (128, 247430), (160, 197944), (218, 145280), (227, 139520), (256, 123715), (320, 98972), (436, 72640), (454, 69760), (545, 58112), (640, 49486), (872, 36320), (908, 34880), (1090, 29056), (1135, 27904), (1280, 24743), (1744, 18160), (1816, 17440), (2180, 14528), (2270, 13952), (3488, 9080), (3632, 8720), (4360, 7264), (4540, 6976)]