81429040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13219}}^1$

素因数の和:13250

約数の個数: 80

約数和(自身を含む): 236056320

約数和(自身を除く): 154627280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 13219, 26438, 52876, 66095, 92533, 105752, 132190, 145409, 185066, 211504, 264380, 290818, 370132, 462665, 528760, 581636, 727045, 740264, 925330, 1017863, 1057520, 1163272, 1454090, 1480528, 1850660, 2035726, 2326544, 2908180, 3701320, 4071452, 5089315, 5816360, 7402640, 8142904, 10178630, 11632720, 16285808, 20357260, 40714520, 81429040]

約数ペア:

[(1, 81429040), (2, 40714520), (4, 20357260), (5, 16285808), (7, 11632720), (8, 10178630), (10, 8142904), (11, 7402640), (14, 5816360), (16, 5089315), (20, 4071452), (22, 3701320), (28, 2908180), (35, 2326544), (40, 2035726), (44, 1850660), (55, 1480528), (56, 1454090), (70, 1163272), (77, 1057520), (80, 1017863), (88, 925330), (110, 740264), (112, 727045), (140, 581636), (154, 528760), (176, 462665), (220, 370132), (280, 290818), (308, 264380), (385, 211504), (440, 185066), (560, 145409), (616, 132190), (770, 105752), (880, 92533), (1232, 66095), (1540, 52876), (3080, 26438), (6160, 13219)]