280495257

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1049}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 465393600

約数和(自身を除く): 184898343

約数列:

[1, 3, 7, 17, 21, 49, 51, 107, 119, 147, 321, 357, 749, 833, 1049, 1819, 2247, 2499, 3147, 5243, 5457, 7343, 12733, 15729, 17833, 22029, 38199, 51401, 53499, 89131, 112243, 124831, 154203, 267393, 336729, 374493, 785701, 873817, 1908131, 2357103, 2621451, 5499907, 5724393, 13356917, 16499721, 40070751, 93498419, 280495257]

約数ペア:

[(1, 280495257), (3, 93498419), (7, 40070751), (17, 16499721), (21, 13356917), (49, 5724393), (51, 5499907), (107, 2621451), (119, 2357103), (147, 1908131), (321, 873817), (357, 785701), (749, 374493), (833, 336729), (1049, 267393), (1819, 154203), (2247, 124831), (2499, 112243), (3147, 89131), (5243, 53499), (5457, 51401), (7343, 38199), (12733, 22029), (15729, 17833)]