1280898880

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{54833}}^1$

素因数の和:54923

約数の個数: 56

約数和(自身を含む): 3091979592

約数和(自身を除く): 1811080712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 1168, 1460, 2336, 2920, 4672, 5840, 11680, 23360, 54833, 109666, 219332, 274165, 438664, 548330, 877328, 1096660, 1754656, 2193320, 3509312, 4002809, 4386640, 8005618, 8773280, 16011236, 17546560, 20014045, 32022472, 40028090, 64044944, 80056180, 128089888, 160112360, 256179776, 320224720, 640449440, 1280898880]

約数ペア:

[(1, 1280898880), (2, 640449440), (4, 320224720), (5, 256179776), (8, 160112360), (10, 128089888), (16, 80056180), (20, 64044944), (32, 40028090), (40, 32022472), (64, 20014045), (73, 17546560), (80, 16011236), (146, 8773280), (160, 8005618), (292, 4386640), (320, 4002809), (365, 3509312), (584, 2193320), (730, 1754656), (1168, 1096660), (1460, 877328), (2336, 548330), (2920, 438664), (4672, 274165), (5840, 219332), (11680, 109666), (23360, 54833)]