19279925

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 28513056

約数和(自身を除く): 9233131

約数列:

[1, 5, 7, 25, 29, 35, 131, 145, 175, 203, 655, 725, 841, 917, 1015, 3275, 3799, 4205, 4585, 5075, 5887, 18995, 21025, 22925, 26593, 29435, 94975, 110171, 132965, 147175, 550855, 664825, 771197, 2754275, 3855985, 19279925]

約数ペア:

[(1, 19279925), (5, 3855985), (7, 2754275), (25, 771197), (29, 664825), (35, 550855), (131, 147175), (145, 132965), (175, 110171), (203, 94975), (655, 29435), (725, 26593), (841, 22925), (917, 21025), (1015, 18995), (3275, 5887), (3799, 5075), (4205, 4585)]