28760725

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1103}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 41068800

約数和(自身を除く): 12308075

約数列:

[1, 5, 7, 25, 35, 149, 175, 745, 1043, 1103, 3725, 5215, 5515, 7721, 26075, 27575, 38605, 164347, 193025, 821735, 1150429, 4108675, 5752145, 28760725]

約数ペア:

[(1, 28760725), (5, 5752145), (7, 4108675), (25, 1150429), (35, 821735), (149, 193025), (175, 164347), (745, 38605), (1043, 27575), (1103, 26075), (3725, 7721), (5215, 5515)]