80028080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:666

約数の個数: 80

約数和(自身を含む): 204415488

約数和(自身を除く): 124387408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 211, 220, 422, 431, 440, 844, 862, 880, 1055, 1688, 1724, 2110, 2155, 2321, 3376, 3448, 4220, 4310, 4642, 4741, 6896, 8440, 8620, 9284, 9482, 11605, 16880, 17240, 18568, 18964, 23210, 23705, 34480, 37136, 37928, 46420, 47410, 75856, 90941, 92840, 94820, 181882, 185680, 189640, 363764, 379280, 454705, 727528, 909410, 1000351, 1455056, 1818820, 2000702, 3637640, 4001404, 5001755, 7275280, 8002808, 10003510, 16005616, 20007020, 40014040, 80028080]

約数ペア:

[(1, 80028080), (2, 40014040), (4, 20007020), (5, 16005616), (8, 10003510), (10, 8002808), (11, 7275280), (16, 5001755), (20, 4001404), (22, 3637640), (40, 2000702), (44, 1818820), (55, 1455056), (80, 1000351), (88, 909410), (110, 727528), (176, 454705), (211, 379280), (220, 363764), (422, 189640), (431, 185680), (440, 181882), (844, 94820), (862, 92840), (880, 90941), (1055, 75856), (1688, 47410), (1724, 46420), (2110, 37928), (2155, 37136), (2321, 34480), (3376, 23705), (3448, 23210), (4220, 18964), (4310, 18568), (4642, 17240), (4741, 16880), (6896, 11605), (8440, 9482), (8620, 9284)]