28487260

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^2$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 61009704

約数和(自身を除く): 32522444

約数列:

[1, 2, 4, 5, 10, 20, 83, 131, 166, 262, 332, 415, 524, 655, 830, 1310, 1660, 2620, 10873, 17161, 21746, 34322, 43492, 54365, 68644, 85805, 108730, 171610, 217460, 343220, 1424363, 2848726, 5697452, 7121815, 14243630, 28487260]

約数ペア:

[(1, 28487260), (2, 14243630), (4, 7121815), (5, 5697452), (10, 2848726), (20, 1424363), (83, 343220), (131, 217460), (166, 171610), (262, 108730), (332, 85805), (415, 68644), (524, 54365), (655, 43492), (830, 34322), (1310, 21746), (1660, 17161), (2620, 10873)]