221370880

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2011}}^1$

素因数の和:2077

約数の個数: 80

約数和(自身を含む): 543384864

約数和(自身を除く): 322013984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 860, 1280, 1376, 1720, 2011, 2560, 2752, 3440, 4022, 5504, 6880, 8044, 10055, 11008, 13760, 16088, 20110, 22016, 27520, 32176, 40220, 55040, 64352, 80440, 86473, 110080, 128704, 160880, 172946, 257408, 321760, 345892, 432365, 514816, 643520, 691784, 864730, 1029632, 1287040, 1383568, 1729460, 2574080, 2767136, 3458920, 5148160, 5534272, 6917840, 11068544, 13835680, 22137088, 27671360, 44274176, 55342720, 110685440, 221370880]

約数ペア:

[(1, 221370880), (2, 110685440), (4, 55342720), (5, 44274176), (8, 27671360), (10, 22137088), (16, 13835680), (20, 11068544), (32, 6917840), (40, 5534272), (43, 5148160), (64, 3458920), (80, 2767136), (86, 2574080), (128, 1729460), (160, 1383568), (172, 1287040), (215, 1029632), (256, 864730), (320, 691784), (344, 643520), (430, 514816), (512, 432365), (640, 345892), (688, 321760), (860, 257408), (1280, 172946), (1376, 160880), (1720, 128704), (2011, 110080), (2560, 86473), (2752, 80440), (3440, 64352), (4022, 55040), (5504, 40220), (6880, 32176), (8044, 27520), (10055, 22016), (11008, 20110), (13760, 16088)]