28866020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 63307440

約数和(自身を除く): 34441420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 317, 580, 628, 634, 785, 1268, 1570, 1585, 3140, 3170, 4553, 6340, 9106, 9193, 18212, 18386, 22765, 36772, 45530, 45965, 49769, 91060, 91930, 99538, 183860, 199076, 248845, 497690, 995380, 1443301, 2886602, 5773204, 7216505, 14433010, 28866020]

約数ペア:

[(1, 28866020), (2, 14433010), (4, 7216505), (5, 5773204), (10, 2886602), (20, 1443301), (29, 995380), (58, 497690), (116, 248845), (145, 199076), (157, 183860), (290, 99538), (314, 91930), (317, 91060), (580, 49769), (628, 45965), (634, 45530), (785, 36772), (1268, 22765), (1570, 18386), (1585, 18212), (3140, 9193), (3170, 9106), (4553, 6340)]